Main Information
Overall Impression:
The bibliographic collection represents a moderately-sized body of research (484 documents) spanning the period 2015-2025. The average age of documents suggests a relatively recent focus, indicating the research area is likely active and evolving. The collection shows reasonable levels of collaboration and impact, especially considering the timeframe. The data was sourced from the Web of Science (WOS), a reputable database known for its high-quality indexing, lending credibility to the collection’s overall significance.
Detailed Interpretation:
1. Scope and Growth:
- Timespan (2015-2025): A ten-year timespan provides a solid foundation for observing trends and developments within the research area. This timeframe is sufficient to assess both emerging and established themes.
- Sources (156 Journals, Books, etc.): The collection draws from a decent range of sources (156). This breadth suggests the research area is interdisciplinary or draws upon contributions from various fields. It is important to investigate the quality and relevance of those sources (e.g., are they high-impact journals within the field?) to properly assess the scope.
- Documents (484): 484 documents over ten years represents a reasonable level of activity. It’s not a massive deluge of papers, indicating a focused, rather than wildly sprawling, research area. To fully gauge this, it’s useful to compare this number to similar research areas indexed in WoS.
- Annual Growth Rate (5.76%): A positive growth rate suggests the research area is expanding. A growth rate of 5.76% points to a modest but consistent increase in the number of publications each year. This is a healthy sign for the field’s vitality.
2. Productivity:
- Document Average Age (4.32 years): The average document age of approximately 4.32 years suggests that the research represented is relatively recent. This highlights the recency and evolution of the field.
- References (22069): A large number of references indicates thorough literature reviews and a good level of engagement with prior research. This reflects the scientific rigor and grounding in existing knowledge. A higher number of references generally suggests a deeper exploration of the topic and awareness of the broader research landscape.
- Keywords Plus (ID: 782) & Author’s Keywords (DE: 1380): The difference between ID and DE suggest that authors used more specific keywords that are not automatically indexed by WOS, so the database may not capture the full breadth of the topic
3. Impact and Citations:
- Average Citations per Document (46.11): An average of 46.11 citations per document is a strong indicator of impact. This suggests that, on average, each paper in the collection has been cited a significant number of times, highlighting the influence and relevance of the research. Remember to compare this citation rate to benchmarks for similar fields and document types in WoS to assess its true relative significance.
- Document Types (Articles, Book Chapters, etc.): The dominance of articles (464) suggests that journal publications are the primary mode of dissemination in this field. The presence of book chapters (5) and proceedings papers (1) indicates some engagement with broader academic discourse beyond journal articles, while “early access” (14) shows a certain level of immediacy and continuous publishing.
4. Authors and Collaboration:
- Authors (1284): The large number of authors indicates a collaborative research environment. This shows that the research benefits from a wide range of expertise and perspectives.
- Authors of Single-Authored Documents (29): This metric combined with the number of single-authored documents allows you to assess the frequency of single-authored work, providing insight into individual contributions.
- Single-Authored Documents (31): A relatively low number of single-authored documents (31) suggests a strong emphasis on collaborative research within this field. The vast majority of research is done by teams.
- Co-Authors per Document (3.5): An average of 3.5 co-authors per document reinforces the notion of a collaborative field. This metric is correlated with the number of single-authored documents and provides a clearer view of the common collaboration level in the collection.
- International Co-Authorships (36.98%): A significant percentage of international co-authorships (36.98%) points to a globally connected research community. This indicates that researchers are actively collaborating across national borders, which likely enriches the research through diverse perspectives and resources.
Critical Discussion Points & Further Investigation:
- Citation Analysis: While the average citations per document is a good indicator, delve deeper. What is the citation distribution? Are there a few highly cited papers skewing the average, or is there a more even distribution? Analyze the most cited papers to identify key themes and influential works.
- Source Quality: Examine the journals represented in the “Sources” list. What are their impact factors and quartiles (e.g., using Journal Citation Reports from WoS)? This will help you understand the prestige and influence of the outlets publishing the research.
- Keyword Analysis: Analyze the “Keywords Plus” and “Author’s Keywords” to identify emerging trends and key research areas within the field. Network analysis of keywords can reveal the intellectual structure of the research area.
- Author Analysis: Who are the most prolific and highly cited authors in this collection? Identifying these key figures can help you understand the leading researchers and institutions in the field.
- Temporal Trends: Analyze how these metrics (e.g., citations, co-authorships, keyword frequency) have changed over time (2015-2025). This can reveal important trends and developments in the research area.
- Database Considerations: The fact that the data is from WoS is important. WoS has a particular scope and bias. Consider whether the findings would be different if the collection was built using Scopus or Google Scholar. Each database indexes a slightly different set of publications.
- Specificity of the collection: Consider the search query used to create this collection. How precisely does it represent the field it is intended to represent?
By addressing these points, you can develop a more nuanced and insightful interpretation of your bibliometric results. Remember to compare your findings to benchmarks and trends in related fields to provide context and assess the relative significance of your findings.

Annual Scientific Production

Average Citations Per Year

Three-Field Plot
Overall Structure and Purpose
This plot is a visual representation of the relationships between three key bibliographic elements:
- Left Field (CR): Cited References – This represents the foundational literature that the authors in the dataset are building upon.
- Center Field (AU): Authors – The authors of the publications in your dataset.
- Right Field (KW\_Merged): Keywords (Merged) – The keywords associated with the publications, giving an overview of the research topics.
The lines connecting these three fields show the co-occurrence or association between items. For example, a line connecting “Author A” to “Keyword B” implies that Author A has publications that use Keyword B. The thickness/intensity of the lines would ideally represent the strength or frequency of that connection.
Specific Interpretation of the Plot
1. Cited References (CR):
* The cited references field lists several publications, indicated by author names, years, and journal information. The presence of “clean prod” (clean production) in many of the cited references suggests that the research area has a strong connection to sustainability, environmental impact, or eco-friendly practices.
* Key cited works appear to be from authors like Bocken, Mont, Tukker, Osterwalder and Baines. These works are fundamental to the field.
2. Authors (AU):
* Parida V and Kohtamaki M appear to have many connections to the cited references and keywords.
* Baines T and Mont O also appear to be key actors.
* The presence of authors from diverse institutions and countries can provide insights into the global distribution of research within the field.
3. Keywords (KW\_Merged):
* “Servitization” and “Product-Service Systems” seem to be prevalent keywords, indicating a focus on business models that integrate products and services.
* Other important keywords include “innovation,” “business models,” “sustainability,” “circular economy,” and “design.” This reveals a multidisciplinary nature of the field, encompassing technological, economic, and environmental aspects.
Interconnections and Insights
- Relationship between Key Authors and Research Themes: The plot shows how the key authors are related to different research themes. For example, Kohtamäki M is connected to “Product-Service Systems,” so their work likely contributes to this area.
- Evolution of Research: The cited references listed, spanning different years, allow tracing the evolution of research themes. For instance, if a particular cited reference from an earlier year is strongly connected to a recent keyword, it shows the enduring influence of that earlier work.
- Core Literature and Emerging Trends: The cited references field (CR) gives an overview of the core literature, and the keywords field (KW\_Merged) provides insight into emerging trends.
Suggestions for Further Analysis and Discussion
- Strength of Connections: Examine the lines that represent the number of connections for the different authors and cited references. A thick line indicates a strong association.
- Central Authors: Identify the authors with the most connections to both cited references and keywords. These are likely central figures in the research area.
- Trend Analysis: Review cited references in combination with keywords that indicate the focus of research interest across time.
- Network Density: How interconnected is the network? A dense network suggests a well-defined and interconnected research field, while a sparse network might indicate fragmented research efforts.
- Community Detection: Employ community detection algorithms (if available in Biblioshiny) to identify clusters of authors, cited references, and keywords that form distinct research communities within the field.
Critical Considerations
Keyword Merging: How were the keywords merged (KW\_Merged)? Different merging strategies can affect the interpretation.
Data Source (WOS): The analysis is based on data from the Web of Science (WOS). WOS has its own biases (e.g., towards journals indexed in WOS), so the results might not be fully representative of the entire research landscape.

Most Relevant Sources

Most Local Cited Sources

Core Sources by Bradford’s Law

Sources’ Local Impact

Sources’ Production over Time

Most Relevant Authors

Most Local Cited Authors

Authors’ Production over Time
Overall Observations:
The plot visualizes the publishing trends and citation impact of leading authors within the dataset, likely focused on Product-Service Systems (PSS) and related fields like servitization and circular economy. The red lines represent the author’s active publishing timeline within the dataset’s scope. The bubbles indicate the number of articles published in a specific year (size) and the total citations received that year (color intensity).
Individual Author Analysis:
- Parida V and Kohtamäki M: These authors show a strong peak in both publication volume and citations around 2019-2020. This is likely driven by collaborative work, as evidenced by the shared highly cited article “DIGITAL SERVITIZATION BUSINESS MODELS IN ECOSYSTEMS: A THEORY OF THE FIRM” (2019) and “THE RELATIONSHIP BETWEEN DIGITALIZATION AND SERVITIZATION: THE ROLE OF SERVITIZATION IN CAPTURING THE FINANCIAL POTENTIAL OF DIGITALIZATION” (2020). The citation intensity suggests these publications have had significant influence. The recent resurgence in publications in 2025 hints at a sustained contribution or a new area of focus for the authors. Their work heavily focuses on “Digital Servitization.”
- Baines T: The author had an important peak in 2019 in number of articles. Their most impactful work, as indicated by citations per year, seems to be around the topic of “Servitization”.
- Frank AG: Shows a steady increase in publications and impact from 2019, suggesting a growing influence in the field. “CAPABILITIES SUPPORTING DIGITAL SERVITIZATION: A MULTI-ACTOR PERSPECTIVE” (2022) and “BUILDING DIGITAL SERVITIZATION ECOSYSTEMS: AN ANALYSIS OF INTER-FIRM COLLABORATION TYPES AND SOCIAL EXCHANGE MECHANISMS AMONG ACTORS” (2023) are their most relevant contributions, suggesting an important focus on ecosystem and multi-actor perspectives.
- McAloone TC and Pigosso DCA: Their work seems closely linked, with shared publications and similar citation patterns. Their research concentrates on assessing the environmental performance of Product/Service-Systems (PSS) through Life Cycle Assessment (LCA) and circular economy strategies.
- Mont O: This author demonstrates a longer publication timeline, starting earlier than others in the plot. The author is dedicated to exploring consumer attitudes and alternative models of consumption, crucial for understanding the adoption of PSS and circular economy initiatives.
Potential Research Questions & Further Investigation:
- Collaboration Networks: The shared high-impact publications of Parida V and Kohtamäki M, and McAloone TC and Pigosso DCA, suggest strong collaboration. Analyzing the co-authorship networks more deeply would reveal key partnerships in the field.
- The Rise of Digital Servitization: Several authors (Parida, Kohtamäki, Frank, and potentially Baines) are heavily focused on “Digital Servitization.” This reflects a significant trend in the field towards integrating digital technologies into service offerings.
- Impact of Circular Economy: The concentration of publications related to circular economy (especially for Cauchick-Miguel PA, McAloone TC and Pigosso DCA) indicates growing interest and research in this area within the PSS context.
- Long-Term vs. Recent Impact: While some authors have established themselves over a longer period (e.g., Mont O), others have emerged more recently (e.g., Frank AG). Comparing their citation trajectories would highlight how research interests and impacts evolve over time.
- Geographical Focus: Investigating the authors’ affiliations could reveal geographical clusters of research activity in PSS, servitization, and circular economy. Cauchick-Miguel PA’s work relating to Brazilian context is one instance.
- Database limitations: Since the analysis is based on WOS, results could vary by using Scopus or Google Scholar.
Critical Considerations:
Normalization: Citation counts should ideally be normalized by year and field to account for differences in citation practices across disciplines and over time.
Citation Counts as a Metric: While citations are a common measure of impact, they are not perfect. Factors like self-citation, citation bias, and the “Matthew effect” (already well-known authors receive more citations) can influence citation counts.
Time Window: The analysis only considers publications within the dataset’s time frame. Authors may have significant publications outside this period.
Field Specificity: The results are specific to the scope of the search terms used to create the dataset. Different search terms would yield different results.

Authors’ Local Impact

Most Relevant Affiliations

Affiliations’ Production over Time

Corresponding Author’s Countries
Overall Productivity:
- Sweden is the most productive country in terms of total publications (64), followed by the United Kingdom (51) and Italy (45).
- China (41) also shows a strong presence, reflecting its increasing prominence in scientific research.
International Collaboration (MCP):
- Finland demonstrates the highest level of international collaboration, with a significant 70.8% of its publications being MCPs. This suggests a strong reliance on international partnerships for its research output in this field.
- Norway and USA comes next with 66.7% and Belgium with 58.8%, and France with 50% are also countries with relatively high MCP percentages, indicating a significant emphasis on international collaborations.
- Germany, Korea, Japan, India, Australia, and Denmark have the lowest MCP percentages. This suggests a relatively stronger focus on domestic research in this area, or perhaps more selective international collaborations.
Balance Between Domestic and Global Research:
- Countries like Sweden, United Kingdom, and Italy, while highly productive overall, still have a relatively large proportion of Single Country Publications (SCPs). This indicates a strong domestic research base alongside their international collaborations.
- Germany stands out as having a high proportion of SCPs relative to its total publications, suggesting a predominantly domestic focus.
- Conversely, countries like Finland, Belgium, France, Austria, Norway, and USA produce more collaborative research, indicating that international cooperation is important for their research output.
Points for Further Discussion/Investigation:
- Database Bias: The analysis is based on data from Web of Science (WOS). WOS has a known bias toward English-language publications and publications from Western countries. This could influence the representation of countries like China, where a significant portion of research might be published in local journals not indexed by WOS.
- Field-Specific Variations: The extent of international collaboration can vary significantly across different research fields. It would be valuable to know the specific subject area of this bibliometric analysis to provide more context to the collaboration patterns. For instance, fields requiring expensive infrastructure or large-scale data collection often necessitate international collaboration.
- Funding and Policy: Government policies and research funding schemes can heavily influence international collaboration. Countries that actively promote and fund collaborative projects are more likely to have higher MCP percentages.
- Development Stage: More developed scientific nations may have established infrastructures that permits research to be done locally, as may explain the lower MCP in those nations.
- Network Analysis: This plot provides a country-level overview. A network analysis could further reveal specific collaborative relationships between countries and identify key international research hubs.
- Corresponding Author as a Proxy: Using the corresponding author’s country as a proxy for the entire research group’s affiliation has limitations. It’s possible that researchers from other countries contributed to the study but weren’t listed as corresponding authors.
In conclusion:
This analysis highlights the varied approaches countries take towards research in this field. Some countries, like Sweden and the United Kingdom, combine strong domestic research with international collaboration. Others, like Finland, heavily rely on international partnerships. Germany appears to prioritize domestic research, while others, like Norway and USA, favour international collaboration. These differences can be attributed to a combination of factors, including funding policies, research priorities, and the specific nature of the research field. Further investigation is needed to fully understand the underlying drivers of these collaboration patterns. Remember to consider the potential biases of the WOS database when interpreting these results.

Countries’ Scientific Production

| SWEDEN | 134 |
| UK | 131 |
| CHINA | 94 |
| ITALY | 88 |
| BRAZIL | 86 |
| GERMANY | 86 |
| FINLAND | 70 |
| NETHERLANDS | 54 |
| FRANCE | 45 |
| SPAIN | 42 |
| BELGIUM | 33 |
| USA | 32 |
| JAPAN | 31 |
| AUSTRALIA | 26 |
| NORWAY | 25 |
| SOUTH KOREA | 24 |
| DENMARK | 21 |
| INDIA | 18 |
| SWITZERLAND | 16 |
| POLAND | 14 |
| GREECE | 11 |
| AUSTRIA | 10 |
| MEXICO | 8 |
| PORTUGAL | 8 |
| CHILE | 7 |
Countries’ Production over Time

Most Cited Countries

Most Global Cited Documents

Most Local Cited Documents
Overall Observations:
- Focus Areas: The journals appearing frequently (e.g., *Industrial Marketing Management*, *Journal of Cleaner Production*, *International Journal of Production Economics*, *Journal of Business Research*) likely represent key publication outlets for research relevant to your specific research field. The topics may include servitization, sustainable business models, circular economy, and related areas within operations, production, and marketing.
- Publication Years: The concentration of articles published around 2017-2020 suggests a relatively recent surge of interest in the specific research topics covered by your collection.
- Normalization Matters: The normalized citation counts (NLC and NGC) are crucial. A high LC or GC might be less significant if the NLC or NGC is low, as it indicates that the article is not cited more often than would be expected for publications of that year. Conversely, even an article with a lower citation count could be highly influential if its normalized citation counts are high.
Key Articles & Interpretations:
Let’s examine some articles based on different criteria:
- High Local and Global Influence:
* KOHTAMÄKI M, 2019, J BUS RES: LC 63, GC 539, NLC 7.35, NGC 6.56 – This article appears to be a cornerstone publication. It has strong local (LC and NLC) and global (GC and NGC) citation impact. This suggests the article is both highly relevant to your specific research area and broadly influential in the wider academic community. Further investigation into the content of this article is warranted to understand its core contribution.
* LINDER M, 2017, BUS STRATEG ENVIRON: LC 49, GC 569, NLC 3.32, NGC 4.18 – Similar to the previous one, this article demonstrates a significant global influence, and its local citations are also strong. The journal *Business Strategy and the Environment* is also a good outlet for reaching the broader academic community.
* KOHTAMÄKI M, 2020, TECHNOL FORECAST SOC: LC 31, GC 450, NLC 6.11, NGC 6.93 – Very similar to the first Kohtamäki’s article, this article has high local and global normalized citations. It shows the author’s high influence in the field.
* BAINES T, 2017, INT J OPER PROD MAN: LC 67, GC 478, NLC 4.55, NGC 3.51- This article has the highest number of local citations.
- High Local Relevance, Moderate Global Influence:
* VEZZOLI C, 2015, J CLEAN PROD: LC 54, GC 245, NLC 5.08, NGC 3.07 – This article has a strong local impact (LC and NLC are high) but its global citation counts are relatively lower. This suggests the article addresses a topic that is highly specific and relevant to the specific research field defined by your collection.
* YANG MY, 2019, J CLEAN PROD: LC 33, GC 97, NLC 3.85, NGC 1.18 – This article is interesting. The number of global citations is not so high, but the local relevance, demonstrated by LC and NLC, suggests a relevant contribution within the analyzed sample.
- Potentially Underrated Global Influence (based on NLC/NGC):
* Look for articles where the NLC is significantly higher than the NGC. This might indicate a paper that is highly impactful within your field but hasn’t yet achieved its full potential for broader recognition. No one seems to stand out particularly.
Recommendations for Further Investigation:
1. Content Analysis: Read the abstracts (and potentially the full text) of the highest-cited articles, especially the KOHTAMÄKI papers, to understand their core arguments, methodologies, and findings. This will provide valuable context for interpreting the bibliometric data.
2. Keyword Analysis: Analyze the keywords associated with these highly cited articles to identify key themes and concepts within your research area. This could be done in Biblioshiny as well.
3. Citation Network Analysis: Use Biblioshiny to visualize the citation network among these articles. This will reveal clusters of related research and identify influential papers that bridge different areas.
4. Author Analysis: Examine the publication records of the most prolific and highly cited authors in your collection (e.g., KOHTAMÄKI, YANG, ARMSTRONG). Understanding their research trajectories and collaborations can provide valuable insights.
5. Compare NLC/NGC Ratios: Calculate the ratio of NLC to NGC for each article. A high ratio suggests the article is more influential within your specific field than globally, indicating a highly specialized contribution.
6. Consider the Journals: Research the aims and scope of the journals where these articles are published. This will help you understand the types of research that are considered relevant and impactful within your field.
Critical Considerations:
- Database Bias: Remember that these results are based solely on the WOS database. If your field relies heavily on publications in other databases (e.g., Scopus, Google Scholar), the results might be different.
- Citation Lag: It takes time for articles to accumulate citations. More recent publications might not yet have reached their full citation potential.
- Context Matters: Citation counts are just one measure of research impact. Consider other factors, such as the quality of the research, its originality, and its practical implications.
- Self-Citations: Be aware of the potential for self-citation bias, where authors cite their own previous work extensively. This can inflate citation counts without necessarily reflecting broader impact. Biblioshiny has some functions that can support this analysis.
By combining the bibliometric data with a deeper understanding of the research content, you can draw more meaningful and nuanced conclusions about the key trends, influential publications, and leading researchers in your field. Remember to use these insights to inform your own research and identify potential areas for future investigation.

Most Local Cited References

Reference Spectroscopy
Overall Interpretation
This RPYS plot visualizes the historical roots of your research area by showing when the references cited in your current collection of papers were originally published. The black line represents the overall citation activity for each year, while the red line highlights years where the citation frequency significantly exceeded the 5-year median. These peaks in the red line indicate “seminal” or foundational years for your field. The list of highly cited references for those peak years give a sense of what specific works were particularly influential.
Key Observations and Potential Insights
1. Emergence of the Field: The black line shows citations steadily increasing to the current date. The field seems relatively new and is in a growth phase.
2. Seminal Years (Red Line Peaks): The red line shows important year clusters. These periods represent when key ideas and concepts were introduced or consolidated within your field. We can break these down:
* 1979: The peak here, and the publications list suggests that the most influential publications in the field were focused on organizational studies and marketing research.
* 1985: The list of publications indicates key works related to competitive strategy, institutionalism, and marketing.
* 1988: Publications include work related to consumer research.
* 1995: Includes publications from the Academy of Management Review.
* 1999, 2002, 2006, 2010, 2013, 2017: These are clearly about circular economy and product service systems.
3. Reference Age: Notice how references prior to the 1970s are rare. This indicates a field that’s largely built upon relatively recent scholarship. While older works might exist, they don’t have the same level of continuing influence within your specific research domain, as defined by the publications included in your analysis.
4. Database Influence: The fact that your data is from Web of Science (WOS) is relevant. WOS has a specific coverage profile, which might influence the prominence of certain publication types or journals in your RPYS plot. It is important to consider the potential bias and coverage limitations of Web of Science when interpreting your results.
Critical Discussion Points and Further Investigation
1. Thematic Clusters: The seminal papers in the list suggest potential shifts in the field’s focus. Investigate whether these periods represent distinct sub-disciplines or schools of thought within the field. For example, is there a shift from general management and strategy topics towards sustainability related topics? Are there schools of thought centered around particular authors?
2. Methodological Shifts: Do the seminal papers point to the adoption of new methodologies or research approaches within your field? For example, the presence of “NATURALISTIC INQUIRY” (Lincoln & Guba, 1985) might indicate a growing interest in qualitative research methods.
3. Database Bias: Because you used WOS, it’s worth considering whether your results would differ if you used a different database like Scopus or Google Scholar. Each database indexes different journals and has different citation coverage, which can affect the prominence of specific publications and research areas in your RPYS plot.
4. Missing Pieces: Are there any periods in your field’s history that seem underrepresented in the RPYS plot? This could indicate areas where further research is needed, or it could reflect a limitation of the data source.
5. Compare with Other Datasets: To account for database bias, you might compare the results with RPYS plots generated from different databases.
In summary, your RPYS plot reveals a research field that has foundations from the 1970s-1980s. The seminal years reveal core concepts and prominent researchers within your domain. However, critical reflection on the analysis by acknowledging the limitations of the WOS database, the potential influence of specific schools of thought, and unexplored areas may further enhance the rigor of your interpretations. Remember to connect these observations back to the specific research questions that you are investigating. Good luck!

Most Frequent Words

WordCloud

TreeMap

Words’ Frequency over Time

Words’ Frequency over Time
Overall Interpretation:
The plot visualizes the evolution of research topics within your WOS dataset from 2016 to 2024, based on the keywords extracted from the `KW_Merged` field. Each line represents the lifespan of a specific term, showing how frequently it appeared in the literature over time. The size of the bubbles indicates the term’s prominence in a given year. The light blue line shows the interquartile range, giving an idea of the spread of the frequency of the term, while the central dot marks the median frequency. The plot specifically highlights the *k=3* most frequent terms for each year.
Key Observations and Discussion Points:
1. Emergence and Decay of Trends:
* Early Trends (2016-2018): “Pss design”, “integrated solutions”, “product service system (pss)” are the early terms, so the field of PSS appears to have been already consolidated at the beginning of the time frame analyzed.
* Mid-Period Trends (2020-2022): A cluster of terms related to business and service innovation including “business models”, “servitization”, “product-service systems”, “circular economy”, “innovation” emerge around 2020.
* Recent Trends (2024): “systematic literature review”, “experiences” and “digital servitization” appear as the most recent trend. This is likely reflecting a growing maturity and reflection on the field.
2. Popularity and Duration:
* The size of the bubbles allows you to easily identify the periods when a topic was most actively researched. For instance, “servitization” seems to have a large bubble in 2020-2022, suggesting a peak in interest during those years.
* The width of the line representing each term shows for how long that term has been relevant.
3. Thematic Clusters:
* Product-Service Systems (PSS) and Servitization: The prominence of terms like “product service system (pss),” “product-service systems,” “servitization,” and “business models” indicates a strong focus on the shift towards service-oriented business models and integrated product-service offerings.
* Sustainability: The emergence of “sustainable business models” suggests an increasing interest in incorporating sustainability considerations into business models.
* Innovation & Transformation: The presence of terms like “innovation,” “transformation,” and “circular economy” points towards research on broader strategic and transformative changes in businesses and industries.
4. Data-Driven Questions for Further Investigation:
* Why did certain trends peak and then decline? For example, why did “servitization” become so prominent in 2020-2022?
* What are the connections between these trends? Are “circular economy” and “sustainable business models” influencing each other? How do they relate to “PSS” and “servitization”?
* What methodologies or approaches are being used to study these trends? A deeper dive into the abstracts of the publications associated with these keywords could reveal common research methods.
* Are there any surprising absences? Are there expected keywords that *don’t* appear in the plot, and if so, why might that be? (e.g. emerging technologies not mentioned?)
Critical Considerations and Limitations:
- Keyword Selection: The trends are based on the `KW_Merged` field. It’s important to understand how this field is constructed (author keywords, database keywords, etc.) as this will influence the topics highlighted.
- Database Bias: The analysis is limited to the WOS database. Results might differ if you used Scopus, Dimensions, or Google Scholar.
- Frequency vs. Impact: The plot shows the *frequency* of keywords, not necessarily their *impact*. A highly cited paper using a less frequent keyword could be more influential than many papers using a very frequent keyword. Consider complementing this analysis with citation analysis.
- Context of the Terms: The analysis treats each keyword in isolation. Some terms might have multiple meanings or nuances that aren’t captured by simply counting their occurrences.
Recommendations for your Research:
1. Cross-validate with qualitative analysis: Conduct a closer reading of highly cited papers associated with the emerging topics, to better understand the context and the core meaning.
2. Check the influence of COVID: the peak on the terms around 2020 could be caused by the global pandemic.
By considering these interpretations, questions, and limitations, you can use this trend topics plot as a valuable starting point for a deeper exploration of your research field. Remember to always critically evaluate the results and consider the context in which the data was generated. Let me know if you’d like to explore any of these areas in more detail!

Clustering by Coupling


Co-occurrence Network
Overall Structure and Parameters:
- Network Type: Word co-occurrence, built from keywords. This tells us which keywords appear together frequently in the same papers.
- Normalization: Association strength is used. This is crucial. Association strength is a more robust measure than simple co-occurrence count, as it corrects for the individual frequency of the terms. A high association strength indicates that the terms co-occur more than you would expect by chance.
- Clustering Algorithm: Walktrap. This algorithm is designed to find communities in networks by simulating random walks and identifying densely connected regions.
- Layout: The layout of the network places nodes (keywords) that are strongly connected closer together. The spring layout aims to balance attraction (between connected nodes) and repulsion (between all nodes).
- Filtering: Multiple edges were *not* removed (i.e. repeated connections between two nodes remain). Isolates *were* removed. Edges with fewer than 2 connections were removed.
- Visualization: Node size reflects degree centrality (number of connections), edge thickness reflects co-occurrence strength, and color indicates cluster membership.
Communities (Clusters/Topics):
The Walktrap algorithm has identified two distinct communities, represented by red and blue nodes. Let’s interpret what these clusters likely represent:
* Red Cluster: This cluster appears to revolve around digital servitization and business model innovation. Key terms include:
* “Product-service systems”
* “Servitization”
* “Business models”
* “Innovation”
* “Digital servitization”
* “Industry 4.0”
* “Technology”
* “Transformation”
* “Digitalization”
* “Impact”
* “Smart”
*Interpretation:* This community probably reflects research focusing on the *digital transformation of product-service systems*, including the role of Industry 4.0 technologies and innovative business models to deliver these services. The focus is on the *impact* of digitalization and the adoption of “smart” technologies within this domain. It is likely focused on the strategic and managerial implications of adopting servitization.
* Blue Cluster: This cluster seems to be centered on circular economy and sustainable design of product-service systems. Key terms include:
* “Circular Economy”
* “Design”
* “Sustainability”
* “Management”
* “Product-service system”
* “Challenges”
* “Framework”
* “Opportunities”
* “Sharing Economy”
* “Circular Business Models”
* “Implementation”
*Interpretation:* This community reflects research related to the *sustainable design and implementation of product-service systems*, specifically focusing on principles of circular economy, sharing economy, and the challenges and opportunities associated with these approaches. It appears to be focused on the “nuts and bolts” of implementation and the concrete frameworks for achieving sustainability within this context.
Most Connected Terms and Their Relevance:
The size of the nodes corresponds to their degree centrality (number of connections). The larger nodes are the most connected terms, indicating they are central to the research field represented by this collection:
- “Product-service systems” & “Servitization”: These are the MOST central terms. This is expected, as they are likely the core concepts driving the research. They serve as bridge points, connecting the other communities.
- “Innovation”: Strongly connected, especially within the “digital servitization” cluster. This indicates the importance of innovation as a driver and enabler of product-service systems.
- “Circular Economy”: A key term within the sustainability cluster, reflecting the growing importance of circularity in PSS design and implementation.
- “Business Models”: Another central term, particularly relevant to the digital transformation aspects of PSS.
- “Design”: Strongly linked to the sustainability cluster, emphasizing the role of design in creating sustainable and circular PSS.
- “Sustainability”: Closely linked to “Circular Economy”.
Interpretation and Discussion Points:
- Two Main Research Streams: The network clearly indicates two major research streams within the field of product-service systems: (1) *Digital Transformation & Business Model Innovation* and (2) *Circular Economy & Sustainable Design*.
- Interconnectedness: Despite the distinct clusters, there are connections between them. “Product-service systems”, “Servitization”, and “Business Models” act as bridges, suggesting that some research explores the intersection of these topics (e.g., how digital technologies enable circular business models for PSS).
* Future Research Directions: The network suggests areas for future research:
* Integrating Sustainability and Digitalization: Exploring how digital technologies can be leveraged to create more sustainable and circular PSS solutions. The connection between the two clusters seems relatively weaker, suggesting opportunity to study these intersections more explicitly.
* Implementation Challenges: The presence of “Challenges” in the sustainability cluster indicates that practical implementation is a key concern. Research could focus on overcoming these barriers.
* Value Creation: The presence of “Value Creation” suggests research into how these create value for stakeholders.
* Management & Frameworks: The importance of management and frameworks in the Blue Cluster suggests that research on governance, organizational structures, and policy related to sustainability-oriented PSS is important.
- Limitations: Remember this analysis is based on *keyword* co-occurrence. While informative, it doesn’t capture the full complexity of the research. Analyzing abstracts or full text would provide deeper insights. Also, WOS has its own bias.
Recommendations for further exploration:
- Ego Network Analysis: Explore the ego network of particularly interesting keywords (e.g., “digital servitization” or “circular business models”) to get a more granular view of their relationships with other terms.
- Temporal Analysis: Analyze how these keyword co-occurrences have changed over time. This can reveal emerging trends and shifts in research focus.
- Citation Network Analysis: Combine this keyword analysis with a citation network analysis to identify influential papers and authors within these research streams.
By considering these points, you can craft a more insightful and data-driven discussion of your bibliometric analysis. Good luck!


Thematic Map
Understanding Strategic Maps
Strategic maps are a visual representation of the intellectual structure of a field. They plot clusters of keywords/themes based on two key dimensions:
- Centrality (Relevance): This measures the importance of a theme within the network of research. High centrality indicates the theme is strongly connected to other themes and plays a key role in the overall field.
- Density (Development): This represents the degree to which a theme is well-developed. High density suggests a theme is well-researched and has many internal connections within the cluster.
The map is typically divided into four quadrants:
- Motor Themes (Upper Right): High centrality and high density. These are the dominant, well-developed themes driving the field.
- Niche Themes (Upper Left): High density but low centrality. These are specialized areas that are well-developed but not strongly connected to the broader field.
- Emerging or Declining Themes (Lower Left): Low density and low centrality. These themes are either new and underdeveloped or are losing relevance in the field.
- Basic Themes (Lower Right): High centrality but low density. These are fundamental themes that are important to the field but require further development and exploration.
Analysis of the Provided Strategic Map
Based on the image and data provided, here’s an interpretation of the map:
1. Cluster Structure: The map shows three distinct clusters: “Circular Economy,” “Digital Servitization,” and “Product-Service Systems”.
2. Quadrant Placement and Interpretation:
* Circular Economy (Upper Left – Niche Theme): The “Circular Economy” cluster is located in the top-left quadrant. This indicates that while this research area is highly developed (high density), it has relatively low centrality within the entire knowledge base represented by your dataset. This suggests that circular economy, while being a mature and well-defined area, might be somewhat disconnected from other prominent themes in your specific dataset. This could mean that research on circular economy is often conducted in relative isolation or focuses on specific aspects not heavily integrated with broader topics. The presence of “sustainability” and “barriers” within this cluster suggests a focus on the challenges and environmental aspects of circular economy adoption.
* Digital Servitization (Around the center): The “Digital Servitization” cluster is located in the center of the graph, with relevance degree and development degree not high. This suggests a good starting point to look into the theme.
* Product-Service Systems (Lower Right – Basic Theme): The “Product-Service Systems” cluster is located in the bottom-right quadrant. This suggests that it has high centrality (is a core theme in the field) but relatively low density (is not as well-developed as other areas). This is quite interesting. It implies that product-service systems are fundamental and connected to many areas within the field but could benefit from further research and exploration. The association with “servitization” and “innovation” reinforces this idea, suggesting that the potential of PSS for driving innovation is recognized, but the specific mechanisms and implementations require further investigation.
3. Central Articles Within Each Cluster:
* Circular Economy: The most central articles for this cluster are:
* ARIOLI V, 2025, COMPUT IND ENG, pagerank 0.182
* GHAFOOR S, 2024, J CLEAN PROD, pagerank 0.182
* RIZOS V, 2016, SUSTAINABILITY-BASEL, pagerank 0.179
These articles likely represent key publications in the area of circular economy, possibly focusing on computational and industrial engineering aspects (ARIOLI), clean production strategies (GHAFOOR), and broader sustainability considerations (RIZOS). The journals these articles appear in provide further context to the specific focus of the cluster.
* Digital Servitization: The most central articles are:
* BENEDETTINI O, 2025, COMPUT IND ENG, pagerank 0.221
* PAGOROPOULOS A, 2017, J CLEAN PROD, pagerank 0.204
* MASTROGIACOMO L, 2020, CIRP J MANUF SCI TEC, pagerank 0.199
These articles likely deal with the integration of digital technologies into servitization strategies. Again, the journals highlight the specific angles: Computational and Industrial Engineering (BENEDETTINI), Clean Production (PAGOROPOULOS), and Manufacturing Science and Technology (MASTROGIACOMO).
* Product-Service Systems: The most central articles are:
* GALERA-ZARCO C, 2021, SUSTAINABILITY-BASEL, pagerank 0.276
* VARGAS JP, 2022, SUSTAINABILITY-BASEL, pagerank 0.244
* YANG MY, 2018, PROD PLAN CONTROL, pagerank 0.241
These articles probably discuss the design, planning, and control of product-service systems, with an emphasis on sustainability (GALERA-ZARCO, VARGAS) and production planning (YANG).
4. Parameters of the Analysis:
* Data Source (WOS): The fact that the data comes from the Web of Science is important. It means the analysis is based on a selection of high-quality, peer-reviewed publications.
* Keywords (KW_Merged): The analysis uses merged keywords, which is a good approach for capturing a broader understanding of the topics.
* N, Minfreq, Ngrams, Stemming: These parameters control the keyword selection and processing. `n=250` means the top 250 keywords were considered. `minfreq=2` means keywords had to appear at least twice. `ngrams=1` means only single-word keywords were used. `stemming=FALSE` means keywords were not stemmed.
* Community Detection (walktrap): The `walktrap` algorithm was used for cluster detection. This algorithm is sensitive to the network structure and can identify communities based on random walks.
Discussion Points and Further Research:
- Integration: The map suggests that “Product-Service Systems” is a central theme, but it is not as developed as “Circular Economy.” Exploring the connections between PSS and Circular Economy could be a fruitful area for future research. How can PSS models be designed to promote circularity? What are the specific challenges and opportunities?
- Digital Transformation: The “Digital Servitization” cluster is located centrally. Further investigation into the role of digital technologies in enabling and transforming servitization strategies could provide valuable insights.
- Limitations: The strategic map is based on keyword analysis. It provides a high-level overview but doesn’t capture the nuances of individual articles. A deeper dive into the literature is necessary for a more comprehensive understanding.
- Database Bias: The analysis is based solely on the Web of Science. Including other databases (Scopus, Google Scholar) could broaden the scope and provide a more complete picture.
- Temporal Trends: This map represents a snapshot in time. Analyzing how the strategic map evolves over time can reveal emerging trends and shifts in the field.
In Summary:
This strategic map provides a valuable overview of the intellectual landscape of your research area. It highlights the key themes, their relative importance, and their level of development. By considering the quadrant placement of the clusters, the central articles within each cluster, and the parameters of the analysis, you can gain insights into potential research gaps, opportunities for integration, and future directions for the field. Remember that this map is just one tool for understanding the literature, and it should be used in conjunction with other methods, such as literature reviews and expert consultations.


Factorial Analysis
Overall Structure and Interpretation
- Dimensions: The map is plotted along two dimensions. Dimension 1 (Dim 1) explains 51.27% of the variance, while Dimension 2 (Dim 2) accounts for 12.38%. This indicates that Dim 1 is the more dominant factor in differentiating the keywords. The positioning of keywords along these dimensions reflects their association with each other. Keywords closer together are more likely to appear together in the same articles within your dataset.
- MCA as a Method: MCA (Multiple Correspondence Analysis) is used to explore the relationships between categorical variables (in this case, keywords). The distance between the points reflects the degree of association. Close points suggest a strong association, distant points a weak one.
Cluster Identification and Interpretation
Based on the visual arrangement of keywords, several potential clusters emerge. Let’s analyze them from left to right:
1. Cluster 1: Digitalization and Manufacturing Transformation (Left-Bottom Quadrant): This cluster includes terms such as “digital servitization,” “capabilities,” “transformation,” “manufacturing firms,” and possibly “Industry 4.0” and “dynamic capabilities.”
* Interpretation: This cluster seems to represent research focused on how digital technologies are changing the manufacturing landscape. “Digital servitization” (integrating services with products) and “capabilities” suggest an emphasis on developing the necessary organizational abilities to implement these changes. “Transformation” and “Manufacturing firms” clearly point to the context. “Industry 4.0” reinforces the technological aspect, and “dynamic capabilities” highlights the ability to adapt to change.
2. Cluster 2: Business Model Innovation and Smart Systems (Bottom-Center): Contains terms like “business model innovation” and “smart.”
* Interpretation: This cluster highlights the intersection of business model innovation with smart technologies, which probably refers to the application of technologies like AI, IoT, and data analytics to create innovative and sustainable business models.
3. Cluster 3: PSS and Servitization (Top-Left Quadrant): This cluster includes terms like “offerings”, “product-service systems (pss)”, “transition”, “firms”, “servitization”, and “impact.”
* Interpretation: This cluster appears to be related to the product-service system and servitization. It suggests an area of focus on how firms transition to PSS models, the impact of these models, and the overall servitization process.
4. Cluster 4: PSS and Business Model (Top-Right Quadrant): Includes terms such as “business models”, “product-service system (pss)”, “model”, “of-the-art”, “design”, “challenges”, and “product-service system strategies”.
* Interpretation: This cluster emphasizes the ‘state of the art’ design and strategies of product-service systems. Keywords like ‘business models’ and ‘challenges’ indicate that this area of research also tackles the business models involved and the implementation challenges.
5. Cluster 5: Sustainability and Circular Economy (Right-Bottom Quadrant): This includes terms like “implementation”, “sustainability”, “circular economy”, “systems”, and “consumption.”
* Interpretation: This cluster concentrates on the sustainability and circular economy aspects. The term “implementation” is distinct, but related to this cluster, as it points to the implementation of circular economy models.
Relevance of Contributing Terms
- High Degree Terms (minDegree = 18): The `minDegree = 18` parameter means that only keywords that appear in at least 18 documents are included. This focuses the analysis on the most prevalent themes within your dataset. The specific number `18` represents a critical value for the degree of connections in the network of terms. Terms with a degree higher than this value are considered more representative of the main topics in the collection.
- Central Terms: Terms located closer to the origin (0,0) are more “general” or central, representing concepts that connect multiple themes.
- Peripheral Terms: Terms further away from the origin are more specific and represent more specialized sub-themes. For example, “circular business models” or “offerings” are more specific than “systems” or “performance.”
Suggestions for Further Investigation
- Specificity of WOS Collection: Remember that these interpretations are based solely on the keywords and their relationships *within your specific WOS collection*. What search terms did you use to build this collection? The nature of your initial search significantly influences the topics represented in the map.
- Examine Articles: To validate these interpretations, read a selection of articles associated with each cluster. This will provide a richer understanding of the context and research questions being addressed.
- Compare Clusters: Analyze the differences and connections between the clusters. For example, how does the “Digitalization and Manufacturing Transformation” cluster relate to the “Sustainability and Circular Economy” cluster? Are digital technologies enabling new sustainable practices?
- Temporal Trends: If your data includes publication years, you could analyze how these clusters have evolved over time.
- Limitations: MCA, like all statistical methods, has limitations. Be cautious about over-interpreting the distances and relationships. Focus on the main clusters and themes.
In summary, your factorial map reveals several key themes in your WOS collection. By understanding the relationships between these themes, you can gain a better understanding of the research landscape and identify potential areas for future research. Remember to ground your interpretations in the context of your specific research questions and dataset.

Co-citation Network
Overall Structure:
The network clearly shows two distinct clusters or communities, visually separated by color (blue and red). This immediately suggests two major, but somewhat distinct, bodies of literature within your dataset. The density of connections within each cluster indicates strong internal relationships between the cited references. The connections between the two cluster are weaker in comparaison of the internal one.
Community Detection (Walktrap):
The “walktrap” community detection algorithm has identified these groupings. Walktrap works by simulating random walks on the network. The intuition is that random walkers will tend to stay within a community for a longer time than they would spend crossing between communities. The “community.repulsion = 0.05” parameter indicates a weak repelling force between communities, likely contributing to the relatively distinct separation we observe. A lower value means communities are more prone to fuse to each other, while a higher value means that the communities are more prone to separation.
Key Nodes & Their Relevance:
The node sizes are proportional to their degree centrality (number of connections). Thus, the largest nodes are the most frequently co-cited references in your dataset. From the image, these appear to be:
- Tukker A. 2004 and Tukker A 2015, Reim W 2015: Given the node sizes, “Tukker” is very influential and central to the research area, with the 2004 and 2015 publications being highly cited and co-cited. “Reim” 2015 also appears to be highly central and co-cited. Given the co-citation context, Tukker’s work is likely related to the same subject as Reim.
- Oliva R 2003, Vandermerwe Sandra. 1988: these references are central to the ‘blue’ cluster.
Inferences and Interpretation:
1. Two Major Research Streams: The two communities likely represent distinct, though related, research streams within the overall topic of your Web of Science collection. They might represent:
* Different theoretical perspectives
* Different methodologies
* Different application areas
* Evolution of research over time (if one community is older)
2. Significance of Key Citations: The highly cited papers (Tukker, Reim, Oliva, Vandermerwe) are foundational or pivotal works within those streams. Understanding *what* these papers are about is crucial. For example, if Tukker’s work is about sustainable innovation and Reim’s is about business models, this could indicate a core theme in the “red” community. If Oliva’s work is about customer relations, then this means that this is a core theme for the ‘blue’ community.
3. Parameter Choices: Consider how the chosen parameters influence the visualization.
* `label.n = 50`: Only the 50 most connected nodes have labels. This ensures readability but may hide less central, yet potentially relevant, references.
* `edges.min = 2`: Only co-citations that appear at least twice are shown as edges. This simplifies the graph and highlights stronger relationships. A lower value would show more connections and might reveal bridging papers between the two clusters.
Next Steps for the Researcher:
1. Identify the Content: The most important step is to *read* the most highly cited papers (Tukker 2004/2015, Reim 2015, Oliva 2003, and Vandermerwe 1988). Understand their key contributions and research focus.
2. Interpret Community Themes: Based on the key papers, characterize the central themes of each community. *Why* are these references being co-cited? What research questions, theories, or methodologies do they share?
3. Examine Bridging Nodes: Identify papers that connect the two communities. These may represent attempts to synthesize different perspectives or apply concepts from one stream to another.
4. Consider Temporal Trends: If the date ranges of the papers in each cluster differ significantly, this could indicate an evolution of the field. Is one community “older” and representing foundational work, while the other is newer and building upon that foundation?
5. Critique the Analysis: Reflect on the parameter choices and their impact on the network structure. Would different community detection algorithms yield different, potentially more nuanced, groupings? Would a different minimum edge weight reveal additional relationships?
By combining this quantitative network analysis with a qualitative understanding of the cited references, you can gain valuable insights into the structure and evolution of research within your chosen domain.
Good luck with your research!

Historiograph
Overall Structure & Temporal Trends
The historiograph shows a clear temporal progression, with older articles (Armstrong et al.) at the top and newer ones (Kohtamaki et al., Sjodin et al.) at the bottom. This is expected in a citation network visualizing temporal development. The majority of the research activity appears to be concentrated between 2017 and 2020.
Cluster Analysis and Topic Evolution:
Based on the network and the article titles, we can identify some potential thematic clusters and their evolution:
- Cluster 1: Early Foundations (Armstrong et al., 2015, 2016):
* Located at the top of the graph.
* Topics: Sustainable Product-Service Systems (PSS) for clothing, consumer perceptions, use-oriented clothing economy.
* *Interpretation:* This cluster represents foundational work on the application of sustainable PSS concepts specifically within the clothing industry, focusing on consumer behavior and alternative consumption models. The color (reddish) may indicate that these articles are not directly citing (or being cited by) the more recent cluster focused on digitization and business models, suggesting a potential separation between the sustainability-focused and technology-focused streams.
*Temporal Evolution:* The relatively isolated position suggests that either research in this specific area branched off or was absorbed into the broader PSS and circular economy research.
- Cluster 2: Servitization & Digitization (2017-2020, central cluster):
* Dominates the middle and lower sections of the graph. This is the most active area of research based on the number of nodes.
* Topics: Servitization, digitization, business models, value co-creation, circular economy.
* Key Articles and themes:
* Baines t, 2017: Servitization: Revisiting The State-Of-The-Art And Research Priorities: Suggests a review or consolidation of the servitization field up to that point.
* Coreynen w, 2017: Boosting Servitization Through Digitization: Highlights the increasing importance of digitization as an enabler of servitization.
* Kohtamäki m, 2019, 2020: Focuses on digital servitization, ecosystems, and the relationship between digitization and servitization in capturing financial potential. This suggests a deepening understanding of the financial implications of integrating digital technologies into service-oriented business models.
* Yang my, 2018, 2019: Business model archetypes for PSS and Circular Economy, suggesting interest in formalizing patterns and practices in PSS.
* *Interpretation:* This cluster reveals a strong trend towards integrating digitization into servitization research. The focus shifts from general PSS and servitization concepts to the specifics of *digital* servitization, its impact on business models, and its role in creating value and financial returns. The “digital servitization” and “circular economy” appear as a prominent research avenue, suggesting a concern with technology-enabled sustainability.
* Other Notable Articles:
* Vezzoli c, 2015: New Design Challenges To Widely Implement ‘Sustainable Product-Service Systems’: it indicates early stage of Sustainable Product-Service Systems.
* linder m, 2017: Circular Business Model Innovation: Inherent Uncertainties: Highlights the challenges and uncertainties associated with implementing circular business models, indicating a critical perspective on the topic.
Pivotal Works
Determining pivotal works requires considering node size (citation count within this network) and centrality (position within the network). Based on the image and information provided:
- Baines t, 2017: appears to be an important node, indicated by the relative size. Its title suggests it is a review, which are often highly cited.
- Kohtamäki m, 2019, 2020: also appear to be influential nodes within the digital servitization cluster.
Knowledge Development
The historiograph suggests the following trajectory of knowledge development:
1. Foundation: Early research focused on sustainable PSS, particularly in the clothing industry, and explored consumer perceptions.
2. Expansion: The field broadened to encompass general servitization concepts and business models.
3. Digitization Focus: Digitization emerged as a key enabler of servitization, leading to research on digital servitization business models and their impact on value co-creation and financial performance.
4. Circular Economy Integration: Integration of circular economy principles into PSS and business models, with a focus on uncertainties and challenges in their implementation.
Critical Discussion Points & Further Research
- Sustainability vs. Technology: Is there a genuine integration of sustainability concerns within the digital servitization research, or is it primarily focused on efficiency and profit maximization? The separation of the “Armstrong” cluster might hint at a divergence.
- Business Model Archetypes: Are the proposed business model archetypes empirically validated and practically useful for firms? This would be an area for further investigation.
- Uncertainties and Challenges: The identification of “inherent uncertainties” in circular business models suggests a need for research on risk management and mitigation strategies.
- Micro-level Dynamics: the presence of “An Agile Co-Creation Process For Digital Servitization: A Micro-Service Innovation Approach” by Sjödin et al., (2020), suggest interest in understanding how digital servitization is implemented at the micro-level.
Limitations
- Scope of the Dataset: The analysis is based on a limited dataset from WOS. Expanding the search to other databases (e.g., Scopus, Google Scholar) might reveal additional clusters and trends.
- Citation Context: The historiograph only shows citation links, not the *context* of the citations. A deeper analysis of the citing papers would provide more nuanced insights into how the cited works are being used and interpreted.
In conclusion, this historiograph provides a valuable overview of the evolution of research in servitization, digitization, and sustainable business models. It highlights the increasing importance of digitization and the emergence of digital servitization as a key research area. However, further research is needed to address the critical discussion points and validate the findings.


Collaboration Network
Overall Network Structure:
- Fragmented Network: The network exhibits a fragmented structure. Several clusters of authors exist, indicating relatively limited collaboration across all researchers within the dataset. The network is not dominated by a single, highly connected core group.
- Community Structure: The ‘walktrap’ clustering algorithm has identified distinct communities (represented by different colors). This suggests that authors tend to collaborate more within specific groups than across them.
- Central Authors: The name ‘parida v’ appears to be the largest label, and largest node. This suggests that the author ‘parida v’ is a central figure in the network.
Community-Specific Insights:
- Red Cluster: The red cluster, containing authors like ‘frank ag’, ‘te dain ma’, ‘pezzotta g’, ‘arioli v’, ‘pirola f’, and ‘mourtzis d’, forms a cohesive collaboration group.
- Green Cluster: The green cluster, featuring authors such as ‘boucher x’, ‘bertoni m’, ‘bigdeli az’, and ‘baines t’, represents another distinct collaboration group.
- Blue Cluster: The blue cluster contains author ‘parida v’, along with ‘kohtamäki m’, ‘chirumalla k’, ‘reim w’, ‘wincent j’ and ‘sjödin dr’, represents another distinct collaboration group.
- Isolated Nodes/Pairs: The presence of isolated nodes (e.g., ‘yang my’) and pairs (e.g., ‘barravecchia f’ and ‘franceschini f’) signifies that these authors have limited collaboration within the dataset, at least with the other authors included in this network.
Interpretation and Discussion Points:
1. Specialization: The distinct communities might indicate specialization within the research area. Each community may be focusing on a specific sub-topic or using different methodologies.
2. Interdisciplinary Research: The limited connections between communities could imply a lack of strong interdisciplinary collaboration within the field. However, the presence of a few connecting links suggests some level of interdisciplinary engagement.
3. Central Author’s Role: The central author ‘parida v’ could be a key figure bridging different communities. The analysis can be deepened to explore whether ‘parida v’ acts as a knowledge broker connecting otherwise disparate groups.
4. Data limitations: The fragmentation may be affected by database selection, keywords used, and the time frame for the data collection. For example, restricting the database to Web of Science might exclude relevant collaborations published in other databases.
Further Investigation:
- Community Themes: Analyze the publications of each community to identify the central themes and research questions they address.
- Bridging Authors: Examine the publications of authors who connect different communities to understand the nature of their interdisciplinary work.
- Evolution of Collaboration: Conduct a longitudinal analysis to observe how the collaboration network has evolved over time.
- External Factors: Investigate if external factors, such as funding opportunities or institutional structures, influence collaboration patterns.
By exploring these questions, researchers can gain a deeper understanding of the dynamics within their field and identify opportunities for future collaboration.


Countries’ Collaboration World Map
Overall Observations
The map visually represents the intensity of research output (color shading) and collaborative links (connecting lines) between countries. Darker shades indicate higher research output, and the lines represent co-authorship relationships.
Key Hubs of Scientific Production
- United States: The US is clearly a major hub, exhibiting a dark blue color, indicating substantial research output.
- Europe: Western Europe (particularly Germany, UK, France, Italy, and the Netherlands) shows high research output and strong internal collaboration. Scandinavian countries also appear as important nodes.
- China: China stands out with a dark blue color, suggesting significant research production, which is consistent with its growing investment in science and technology.
- Australia: Australia has a noticeable coloration, indicating strong collaboration with other countries.
- Brazil: Brazil has a noticeable coloration, indicating strong collaboration with other countries.
Key International Partnerships
- Transatlantic Collaboration: Strong collaborative links connect the US with Europe (especially Western Europe). This highlights the enduring importance of transatlantic research partnerships.
- Europe’s Internal Network: There’s a dense network of collaborations within Europe itself, suggesting a well-integrated research community.
- China’s Connections: China has collaboration links primarily with the US and Europe, showing its integration into the global research landscape.
- Australia’s Connections: Australia has collaboration links primarily with the US and Europe, showing its integration into the global research landscape.
- Brazil’s Connections: Brazil has collaboration links primarily with the US and Europe, showing its integration into the global research landscape.
Global Patterns of Collaboration
- North-South Collaboration: The presence of connections to Brazil suggests collaborations between the global “North” (US/Europe) and the “South.” Further analysis would be needed to determine the nature and directionality of these collaborations (e.g., are they driven by research questions specific to the “South”?).
- Core-Periphery Dynamics: The map may suggest core-periphery dynamics, where major hubs (US, Europe, China) act as “core” countries, collaborating with a wider range of countries. The color intensity of countries in Africa, for example, suggests they may participate in research less intensely.
- Geographic Proximity: While global collaborations are apparent, geographic proximity likely plays a role in fostering collaborations, particularly within Europe.
Interpretation Considerations and Next Steps
- Database Bias: Remember that this analysis is based on Web of Science (WOS). WOS has a bias towards English-language publications and certain disciplines.
- Field Specificity: This is an aggregate view. Collaboration patterns can vary greatly by research field. To understand the nuances, repeat this analysis for specific subject areas.
- Nature of Collaboration: The co-authorship data tells us *that* collaborations exist, but not *how* they are structured. Is it equal partnership? Are certain countries taking the lead in research projects?
- Missing Data: The absence of strong links doesn’t necessarily mean no collaboration. It might reflect less publication in WOS-indexed journals, particularly for some countries.
Further Analysis and Discussion Points
1. Network Analysis: Consider using network analysis techniques to quantify the strength of ties between countries, identify central actors (using metrics like betweenness centrality), and detect potential research clusters.
2. Temporal Trends: Analyze how collaboration patterns have evolved over time by creating multiple maps for different time periods.
3. Specific Disciplines: How does this map change when you filter it by specific research areas (e.g., medicine, engineering, social sciences)?
4. Funding Landscape: Are there specific international funding programs that might be driving these collaborations?
5. Geopolitical Factors: How do political relationships or trade agreements influence scientific collaboration?
By considering these aspects, you can move beyond a descriptive overview to a more insightful interpretation of the global research collaboration landscape. Let me know if you want to explore any of these avenues in more detail!

| FRANCE | MEXICO | 1 |
| GERMANY | MEXICO | 1 |
| ITALY | MEXICO | 1 |
| SPAIN | MEXICO | 2 |
| SWEDEN | MEXICO | 2 |
| UNITED KINGDOM | MEXICO | 1 |
| USA | MEXICO | 1 |