Loet Leydesdorff

University of Amsterdam - Amsterdam School of Communication Research (ASCoR)

Professor

PO Box 15793

Amsterdam, 1001 NG

Netherlands

http://www.leydesdorff.net

SCHOLARLY PAPERS

77

DOWNLOADS
Rank 2,050

SSRN RANKINGS

Top 2,050

in Total Papers Downloads

31,427

TOTAL CITATIONS
Rank 6,306

SSRN RANKINGS

Top 6,306

in Total Papers Citations

229

Scholarly Papers (77)

1.

The Triple Helix -- University-Industry-Government Relations: A Laboratory for Knowledge Based Economic Development

EASST Review, Vol. 14, No. 1, pp. 14-19, 1995
Number of pages: 9 Posted: 15 Aug 2014
Henry Etzkowitz and Loet Leydesdorff
Stanford University - H-STAR Institute and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 12,920 (785)
Citation 20

Abstract:

Loading...

2.

The Triple Helix of University-Industry-Government Relations (February 2012)

forthcoming in: Elias Carayannis and David Campbell (Eds.), Encyclopedia of Creativity, Innovation, and Entrepreneurship, New York: Springer.
Number of pages: 17 Posted: 02 Feb 2012 Last Revised: 12 Jun 2014
Loet Leydesdorff
University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 2,351 (13,538)
Citation 13

Abstract:

Loading...

Triple Helix, innovation, evolutionary, system, Mode 2

3.

Universities and the Global Knowledge Economy: A Triple Helix of University-Industry Relations

Preprint version of: Etzkowitz, H., & Leydesdorff, L. (1997). Universities and the Global Knowledge Economy: A Triple Helix of University-Industry-Government Relations. London: Pinter. [archival reprint]
Number of pages: 256 Posted: 21 Jun 2019 Last Revised: 02 Jan 2020
Henry Etzkowitz and Loet Leydesdorff
Stanford University - H-STAR Institute and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 1,506 (27,257)
Citation 8

Abstract:

Loading...

4.

The Endless Transition: A 'Triple Helix' of University Industry Government Relations

Minerva 36(3) (1998) 203-208
Number of pages: 7 Posted: 03 Mar 2014
Henry Etzkowitz and Loet Leydesdorff
Stanford University - H-STAR Institute and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 1,386 (30,786)
Citation 7

Abstract:

Loading...

5.

Beer's Viable System Model and Luhmann's Communication Theory: 'Organizations' from the Perspective of Metagames

Systems Research and Behavioral Science (2013)
Number of pages: 23 Posted: 16 Jun 2013 Last Revised: 02 Aug 2013
Mark Johnson and Loet Leydesdorff
University of Bolton and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 1,035 (46,953)

Abstract:

Loading...

communication, viability, Beer, Luhmann, metagame

6.

Quantitative and Qualitative STS: The Intellectual and Practical Contributions of Scientometrics

Number of pages: 35 Posted: 03 Apr 2015 Last Revised: 13 Jan 2016
Sally Wyatt, Staša Milojević, Han Park and Loet Leydesdorff
Maastricht University, Indiana University Bloomington - School of Informatics and Computing, Yeungnam University and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 825 (64,262)
Citation 6

Abstract:

Loading...

STS, science studies, scientometrics, citation, Merton

7.

In Search of a Network Theory of Innovations: Relations, Positions, and Perspectives

Journal of the American Society for Information Science and Technology (JASIST); Forthcoming
Number of pages: 46 Posted: 28 Jun 2013 Last Revised: 07 Sep 2013
Loet Leydesdorff and Petra Ahrweiler
University of Amsterdam - Amsterdam School of Communication Research (ASCoR) and EA European Academy of Technology and Innovation Assessment GmbH
Downloads 774 (69,952)
Citation 6

Abstract:

Loading...

innovation, complex systems, reflexivity, synergy, translation

8.

Luhmann, Habermas, and the Theory of Communication

Systems Research and Behavioral Science 17(3) (2000) 273-288
Number of pages: 22 Posted: 28 Jan 2013
Loet Leydesdorff
University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 591 (99,155)
Citation 3

Abstract:

Loading...

self-organization, communication, sociology, Habermas, Luhmann, reflexivity

9.

Synergy in Innovation Systems: Redundancy in the Triple Helix of University-Industry-Government Relations

SWPS 2017-08
Number of pages: 52 Posted: 24 Mar 2017 Last Revised: 13 Feb 2019
Loet Leydesdorff, Inga Ivanova and Martin S. Meyer
University of Amsterdam - Amsterdam School of Communication Research (ASCoR), National Research University Higher School of Economics and University of Kent, Kent Business School
Downloads 566 (104,512)
Citation 13

Abstract:

Loading...

Triple Helix; Non-linear Dynamics; University-Industry-Government Relations; Redundancy; Innovation Systems; Knowledge Base

10.

Radical Constructivism and Radical Constructedness: Luhmann’s Sociology of Semantics, Organizations, and Self-Organization

Constructivist Foundations, Forthcoming
Number of pages: 20 Posted: 15 Feb 2012 Last Revised: 31 Jul 2012
Loet Leydesdorff
University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 396 (160,258)

Abstract:

Loading...

constructivism, sociology, Luhmann, supra-individual, self-organization, intentionality

11.

The Evolution of Communication Systems

Loet Leydesdorff, The Evolution of Communication Systems, Int. J. Systems Research and Information Science 6 (1994) 219-230
Number of pages: 19 Posted: 21 Mar 2013
Loet Leydesdorff
University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 395 (160,726)
Citation 2

Abstract:

Loading...

12.

The Triple Helix in the Context of Global Change: Dynamics and Challenges

Number of pages: 13 Posted: 18 Nov 2012
Helen Lawton Smith and Loet Leydesdorff
University of Oxford - School of Geography and the Environment and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 386 (164,885)
Citation 1

Abstract:

Loading...

Triple Helix, globalization, innovation, systems, dynamics, evolution

13.

Niklas Luhmann's Magnificent Contribution to the Sociological Tradition: The Emergence of the Knowledge-Based Economy as an Order of Expectations

Forthcoming in: Nachtflug der Eule: 150 Stimmen zum Werk von Niklas Luhmann. Gedenkbuch zum 15. Todestag von Niklas Luhmann (8. Dezember 1927 Lüneburg - 6. November 1998 Oerlinghausen), Magdalena Tzaneva (Ed.). Berlin: LiDi Europe Verlagshaus, 2013; Vol. 2, pp. 470-484.
Number of pages: 11 Posted: 18 Nov 2013 Last Revised: 18 Nov 2014
Loet Leydesdorff
University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 356 (180,356)

Abstract:

Loading...

14.

The Measurement of 'Interdisciplinarity' and 'Synergy' in Scientific and Extra-Scientific Collaborations

JASIST, in print
Number of pages: 32 Posted: 19 Apr 2020 Last Revised: 28 Aug 2020
Loet Leydesdorff and Inga Ivanova
University of Amsterdam - Amsterdam School of Communication Research (ASCoR) and National Research University Higher School of Economics (Moscow)
Downloads 305 (213,204)
Citation 8

Abstract:

Loading...

Interdisciplinarity, Synergy, Niche, Redundancy, Reduction of Uncertainty, Measurement

15.

The Sciences are Discursive Constructs: The Communication Perspective as an Empirical Philosophy of Science

in: Lorenzo Cantoni and James A. Danowski (Eds.), Communication and Technology, De Gruyter Mouton, 2015
Number of pages: 10 Posted: 22 Sep 2014 Last Revised: 28 Aug 2015
Loet Leydesdorff
University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 275 (238,507)

Abstract:

Loading...

philosophy of communication, empirical, communication studies, philosophy of science

16.

The Citation Impact of German Sociology Journals: Some Problems with the Use of Scientometric Indicators in Journal and Research Evaluations

Soziale Welt (Forthcoming)
Number of pages: 20 Posted: 24 Dec 2014 Last Revised: 13 Mar 2015
Loet Leydesdorff and Staša Milojević
University of Amsterdam - Amsterdam School of Communication Research (ASCoR) and Indiana University Bloomington - School of Informatics and Computing
Downloads 258 (253,549)
Citation 9

Abstract:

Loading...

sociology, impact, citation, Merton, German, journal

A Triple Helix Model of Medical Innovation: Supply, Demand, and Technological Capabilities in Terms of Medical Subject Headings

Research Policy, 45(3), 666-681
Number of pages: 38 Posted: 11 May 2015 Last Revised: 10 Jan 2022
University of California Merced, Department of Management of Complex Systems, SPRU (Science Policy Research Unit), University of Sussex and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 189 (340,749)
Citation 13

Abstract:

Loading...

innovation model; Triple Helix; uncertainty; redundancy; synergy; mutual information; medical innovation; Medical Subject Headings; MEDLINE/PubMed

A Triple Helix Model of Medical Innovation: Supply, Demand, and Technological Capabilities in Terms of Medical Subject Headings

SWPS 2016-01
Number of pages: 41 Posted: 10 Mar 2016
University of California Merced, Department of Management of Complex Systems, SPRU (Science Policy Research Unit), University of Sussex and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 64 (754,408)
Citation 13

Abstract:

Loading...

triple helix, Medical Subject Headings, MEDLINE/PubMed, synergy, innovation, knowledge order, mutual information, dynamic vocabulary, redundancy

18.

Decomposing the Triple-Helix Synergy into the Regional Innovation Systems of Norway: Firm Data and Patent Networks

Number of pages: 51 Posted: 21 Feb 2015 Last Revised: 18 Apr 2016
Øivind Strand, Inga Ivanova and Loet Leydesdorff
Norwegian University of Science and Technology (NTNU), National Research University Higher School of Economics and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 241 (271,292)
Citation 1

Abstract:

Loading...

triple helix, USPTO patents, regional innovation system, probabilistic entropy

19.

'Open Innovation' and 'Triple Helix' Models of Innovation: Can Synergy in Innovation Systems Be Measured?

Number of pages: 23 Posted: 09 Jun 2016
Loet Leydesdorff and Inga Ivanova
University of Amsterdam - Amsterdam School of Communication Research (ASCoR) and National Research University Higher School of Economics
Downloads 227 (287,622)
Citation 2

Abstract:

Loading...

innovation, redundancy, knowledge, code, options

20.

Smart Specialization Strategies at National, Regional, or Local Levels? Synergy and Policy-making in German Systems of Innovation

Ruhrmann, H., Fritsch, M., & Leydesdorff, L. (2021). Synergy and policy-making in German innovation systems: Smart Specialisation Strategies at national, regional, local levels? Regional Studies, 0(0), 1–12. https://doi.org/10.1080/00343404.2021.1872780
Number of pages: 37 Posted: 11 May 2020 Last Revised: 17 Feb 2021
Henriette Ruhrmann, Michael Fritsch and Loet Leydesdorff
Technische Universität Berlin (TU Berlin), Friedrich-Schiller-Universität Jena - School of Economics and Business Administration and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 223 (292,569)
Citation 3

Abstract:

Loading...

Innovation systems, Triple Helix, Germany, Redundancy, Synergy, Innovation Policy, Smart Specialization

21.

The Challenge of Scientometrics: The Development, Measurement, and Self-Organization of Scientific Communications

First published by DSWO Press, Leiden University, Leiden, The Netherlands, 1995 Second edition. Published by Universal Publishers / uPUBLISH.com, USA • 2001
Number of pages: 355 Posted: 27 Jan 2020
Loet Leydesdorff
University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 222 (293,826)
Citation 4

Abstract:

Loading...

self-organization, information sciences, communication theory, science studies, knowledge, scientometrics, indicators

22.

Triple, Quadruple, and Higher-Order Helices: Historical Phenomena and (Neo-)Evolutionary Models

Number of pages: 31 Posted: 15 Apr 2021 Last Revised: 17 Sep 2021
Loet Leydesdorff and Helen Lawton Smith
University of Amsterdam - Amsterdam School of Communication Research (ASCoR) and University of London
Downloads 215 (302,919)

Abstract:

Loading...

entrepreneurial university, overlay, knowledge-based co-evolution, triple helix

23.

Trajectories and Regimes in Research and Knowledge Evaluations: Contributions to an Evolutionary Theory of Citation?

Number of pages: 26 Posted: 24 Apr 2022
Loet Leydesdorff, Lin Zhang and Paul Wouters
University of Amsterdam - Amsterdam School of Communication Research (ASCoR), Wuhan University - School of Information Management and Leiden University - Centre for Science and Technology Studies
Downloads 214 (304,358)
Citation 1

Abstract:

Loading...

interdisciplinarity, synergy, bibliographic coupling, co-citation, research evaluation, knowledge evaluation

24.

A Discussion of Measuring the Top-1% Most-Highly-Cited Publications: The Case of China

Number of pages: 20 Posted: 19 May 2021
Caroline Wagner, Lin Zhang, Koen Jonkers and Loet Leydesdorff
Ohio State University (OSU) - John Glenn School of Public Affairs, Wuhan University - School of Information Management, Joint Research Center of the European Commission and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 214 (304,358)
Citation 1

Abstract:

Loading...

Citation Analysis; National Standing; International Cooperation; Science; Technology; United States; China

25.

Can Synergy in Triple-Helix Relations Be Quantified? A Review of the Development of the Triple-Helix Indicator

Forthcoming in: Triple Helix: A Journal of University-Industry-Government Innovation and Entrepreneurship
Number of pages: 32 Posted: 11 Jan 2014 Last Revised: 13 Mar 2015
Loet Leydesdorff and Han Park
University of Amsterdam - Amsterdam School of Communication Research (ASCoR) and Yeungnam University
Downloads 213 (305,747)
Citation 3

Abstract:

Loading...

indicator, probabilistic entropy, niche, synergy

The Differentia Specifica of Interhuman Communications: Luhmann and the Sociological Reflection of Information Theory

Gordana Dodig-Crnkovic & Mark Burgin (eds.), Theoretical Information Studies Vol 2. World Scientific, 2018. (version, 21 May 2018)
Number of pages: 17 Posted: 22 Feb 2018 Last Revised: 23 May 2018
Loet Leydesdorff
University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 173 (369,294)

Abstract:

Loading...

code, communication, Luhmann, cultural evolution, infra-reflexivity, language, languaging

The Differentia Specifica of Interhuman Communications: Luhmann and the Sociological Reflection of Information Theory

Gordana Dodig-Crnkovic & Mark Burgin (eds.), Theoretical Information Studies Vol 2. World Scientific, 2018. (version, 21 May 2018)
Number of pages: 17 Posted: 22 Feb 2018
Loet Leydesdorff
University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 32 (1,030,172)

Abstract:

Loading...

code, communication, Luhmann, cultural evolution, infra-reflexivity, language, languaging

27.

Diverse Effects of FDI in Regional Innovation Systems: Synergy Measurement, Complexity Theory, and Entropy Statistics

Number of pages: 29 Posted: 26 Apr 2013
Balázs Lengyel and Loet Leydesdorff
Hungarian Academy of Sciences (HAS) - Institute of Economics CERS-HAS (IEHAS) and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 203 (319,960)
Citation 3

Abstract:

Loading...

regional innovation system, knowledge function, synergy, entropy, foreign firms

28.

The Communication of Expectations and Individual Understanding: Redundancy as Reduction of Uncertainty, and the Processing of Meaning

Kybernetes 43(9/10) (2014) 1362-1371
Number of pages: 17 Posted: 24 Nov 2013 Last Revised: 02 Nov 2019
Loet Leydesdorff, Mark Johnson and Inga Ivanova
University of Amsterdam - Amsterdam School of Communication Research (ASCoR), University of Bolton and National Research University Higher School of Economics
Downloads 202 (321,363)

Abstract:

Loading...

intersubjectivity, anticipatory systems, codification, expectation, meaning, redundancy

29.

Disruption Indices and their Calculation using Web-of-Science Data: Indicators of Historical Developments or Evolutionary Dynamics?

Number of pages: 32 Posted: 17 Mar 2021
Loet Leydesdorff and Lutz Bornmann
University of Amsterdam - Amsterdam School of Communication Research (ASCoR) and Max Planck Society for the Advancement of the Sciences
Downloads 183 (352,072)

Abstract:

Loading...

disruption, evolutionary regime, historical trajectory, Kullback-Leibler, redundancy

30.

Introduction: Universities in the Global Knowledge Economy Triaple Helix of University-Industry-Government Relations

Henry Etzkowitz and Loet Leydesdorff (eds.), Universities and the Global Knowledge Economy: A Triple Helix of University-Industry-Government Relations (London: Cassell, 1997), 174 + viii pp.
Number of pages: 19 Posted: 16 Mar 2017
Henry Etzkowitz and Loet Leydesdorff
Stanford University - H-STAR Institute and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 182 (358,929)

Abstract:

Loading...

triple helix, university, innovation, entrepreneurship

31.

Theories of Citation?

Scientometrics 43(1), 1998, 5-25
Number of pages: 22 Posted: 14 Jun 2013
Loet Leydesdorff
University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 171 (373,771)
Citation 12

Abstract:

Loading...

32.

A Proposal to Revise and Simplify the Disruption Indicator

Number of pages: 15 Posted: 06 Jan 2021
Loet Leydesdorff, Alexander Tekles and Lutz Bornmann
University of Amsterdam - Amsterdam School of Communication Research (ASCoR), Max Planck Society for the Advancement of the Sciences and Max Planck Society for the Advancement of the Sciences
Downloads 165 (385,638)
Citation 3

Abstract:

Loading...

disruption, indicator, revision, bibliographic coupling

33.

Science Studies and Sociology

Leydesdorff, L. (2022). Science Studies and Sociology. ISSI Newsletter, 18(1), 11-15.
Number of pages: 6 Posted: 12 May 2022
Loet Leydesdorff
University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 164 (387,608)

Abstract:

Loading...

34.

The Efficiency of Triple-Helix Relations in Innovation Systems: Measuring the Connection between a Country’s Net Income and Its Knowledge Base

Higher School of Economics Research Paper No. #WP BRP 54/STI/2015
Number of pages: 24 Posted: 08 Dec 2015
Inga Ivanova, Øivind Strand, Duncan Kushnir and Loet Leydesdorff
National Research University Higher School of Economics, Norwegian University of Science and Technology (NTNU), Chalmers University of Technology and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 158 (400,132)
Citation 6

Abstract:

Loading...

Triple-Helix innovation system, Method of Reflections, economic complexity, technological efficiency, patent complexity index PCI

35.

Luhmann's Sociological Theory: Its Operationalization and Future Perspectives

Social Science Information 35(2) (1996) 283-306
Number of pages: 28 Posted: 07 Mar 2013
Loet Leydesdorff
University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 158 (400,132)
Citation 1

Abstract:

Loading...

Luhmann, sociology, operationalization, entropy, technology

36.

Knowledge-Generating Efficiency in Innovation Systems: The Relation between Structural and Temporal Effects

Number of pages: 31 Posted: 21 May 2014
Inga Ivanova and Loet Leydesdorff
National Research University Higher School of Economics and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 156 (404,554)
Citation 1

Abstract:

Loading...

knowledge generation, cycles, efficiency analysis, fractal, Fibonacci numbers, forecast

37.

Automation in the Overlaying of Journal Maps

Number of pages: 6 Posted: 18 Mar 2021
Loet Leydesdorff
University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 154 (408,950)
Citation 1

Abstract:

Loading...

maps, portfolio, diversity, interdiscuplinarity

38.

The Scientometric Measurement of Interdisciplinarity and Diversity in Research Portfolios of Chinese Universities

Number of pages: 32 Posted: 31 Mar 2021
Lin Zhang and Loet Leydesdorff
KU Leuven - Faculty of Business and Economics (FEB) and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 153 (411,215)
Citation 5

Abstract:

Loading...

diversity, balance, disparity, variety, measurement, interdisciplinarity, comprehensiveness, portfolio

39.

Toward a Calculus of Redundancy: Signification, Codification, and Anticipation in Cultural Evolution

Number of pages: 34 Posted: 05 Sep 2017
Loet Leydesdorff, Mark Johnson and Inga Ivanova
University of Amsterdam - Amsterdam School of Communication Research (ASCoR), University of Bolton and National Research University Higher School of Economics
Downloads 144 (431,943)
Citation 3

Abstract:

Loading...

redundancy, discursive knowledge, incursion, options, meaning, codification

40.

The Evolutionary Dynamics of Expectations: Interactions among Codes in Inter-Human Communications

Number of pages: 30 Posted: 07 Jul 2020 Last Revised: 25 Aug 2020
Loet Leydesdorff and Franz Hoegl
University of Amsterdam - Amsterdam School of Communication Research (ASCoR) and Denkmalneu
Downloads 142 (436,841)

Abstract:

Loading...

Sociology, Communication Theory, Theory of Knowledge, Codes, Expectation, Monism

41.

Turning to Ontology in STS? Turning to STS Through ‘Ontology’

Social Studies of Science, Forthcoming
Number of pages: 38 Posted: 22 Jul 2012 Last Revised: 25 Jul 2012
Bas Heur, Loet Leydesdorff and Sally Wyatt
Vrije Universiteit Brussel, University of Amsterdam - Amsterdam School of Communication Research (ASCoR) and Maastricht University
Downloads 140 (441,787)

Abstract:

Loading...

ontology, science and technology studies, bibliometrics, philosophy, constructivism, realism, classification

42.

Strategic Intelligence on Emerging Technologies: Scientometric Overlay Mapping

Journal of the Association for Information Science and Technology, 68(1), 214-233
Number of pages: 38 Posted: 27 Mar 2013 Last Revised: 10 Jan 2022
SPRU (Science Policy Research Unit), University of Sussex, Ingenio (CSIC-UPV), Universitat Politècnica de València, University of Sussex and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 127 (477,639)
Citation 6

Abstract:

Loading...

scientometric overlay mapping; emerging technology; strategic intelligence; dis- tributed strategic intelligence; governance; case-study

43.

Extending Economic Complexity Index to a Ternary Complexity Index

Number of pages: 26 Posted: 20 Nov 2017
Inga Ivanova, Øivind Strand and Loet Leydesdorff
National Research University Higher School of Economics, Norwegian University of Science and Technology (NTNU) and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 126 (480,605)

Abstract:

Loading...

economic complexity; metrics; triple helix; eco-system; simulation

44.

The Construction of Interdisciplinarity: The Development of the Knowledge Base and Programmatic Focus of the Journal Climatic Change, 1977-2013

Number of pages: 33 Posted: 16 Nov 2014
Iina Hellsten and Loet Leydesdorff
VU University Amsterdam - Organization Science and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 125 (483,612)
Citation 2

Abstract:

Loading...

Matching MEDLINE/PubMed Data with Web of Science (WoS): A Routine in R Language

Journal of the Association for Information Science and Technology (Forthcoming)
Number of pages: 9 Posted: 18 Jun 2014 Last Revised: 06 Jan 2016
Daniele Rotolo and Loet Leydesdorff
SPRU (Science Policy Research Unit), University of Sussex and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 86 (636,413)
Citation 4

Abstract:

Loading...

Matching MEDLINE/PubMed Data with Web of Science (Wos): A Routine in R Language.

Forthcoming SWPS 2014-14 (Research Methods)
Number of pages: 12 Posted: 07 Mar 2016
Daniele Rotolo and Loet Leydesdorff
SPRU (Science Policy Research Unit), University of Sussex and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 38 (965,585)

Abstract:

Loading...

46.

Scientometric Mapping as a Strategic Intelligence Tool for the Governance of Emerging Technologies.

SWPS 2014-10
Number of pages: 43 Posted: 07 Mar 2016
SPRU (Science Policy Research Unit), University of Sussex, Ingenio (CSIC-UPV), Universitat Politècnica de València, University of Sussex and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 121 (496,072)
Citation 11

Abstract:

Loading...

47.

Measuring the Expected Synergy in Spanish Regional and National Systems of Innovation

Journal of Technology Transfer, Forthcoming
Number of pages: 33 Posted: 16 Apr 2017 Last Revised: 19 Aug 2017
Loet Leydesdorff and Igone Porto Gomez
University of Amsterdam - Amsterdam School of Communication Research (ASCoR) and University of the Basque Country
Downloads 120 (499,250)
Citation 1

Abstract:

Loading...

region, innovation, synergy, triple helix, Spain, Barcelona

48.

Synergy Cycles in the Norwegian Innovation System: The Relation between Synergy and Cycle Values

Number of pages: 31 Posted: 07 Sep 2014
Inga Ivanova, Øivind Strand and Loet Leydesdorff
National Research University Higher School of Economics, Norwegian University of Science and Technology (NTNU) and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 111 (529,501)
Citation 3

Abstract:

Loading...

knowledge base, probabilistic entropy, triple helix, spectral analysis

Are University Rankings Statistically Significant? A Comparison among Chinese Universities and with the USA

Number of pages: 34 Posted: 09 Jan 2021
Loet Leydesdorff, Caroline S. Wagner and Lin Zhang
University of Amsterdam - Amsterdam School of Communication Research (ASCoR), Ohio State University (OSU) and KU Leuven - Faculty of Business and Economics (FEB)
Downloads 72 (706,863)
Citation 3

Abstract:

Loading...

ranking, university, China, significance of differences, indicators

Are University Rankings Statistically Significant? A Comparison among Chinese Universities and with the USA

Number of pages: 34 Posted: 17 Mar 2021
Loet Leydesdorff, Caroline Wagner and Lin Zhang
University of Amsterdam - Amsterdam School of Communication Research (ASCoR), Ohio State University (OSU) - John Glenn School of Public Affairs and KU Leuven - Faculty of Business and Economics (FEB)
Downloads 30 (1,053,267)

Abstract:

Loading...

50.

In Praise of Bibliometrics

Journal of Informetrics, Forthcoming
Number of pages: 7 Posted: 24 Feb 2017 Last Revised: 27 Feb 2017
Loet Leydesdorff
University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 101 (567,524)

Abstract:

Loading...

bibliometrics, indicator, evaluation

51.

Eco-Systems Mapping and Forecasting of Techno-Science Linkages at the Level of Scholarly Journals and Fields

Number of pages: 27 Posted: 17 Oct 2019
Xiaozan Lyu, Ping Zhou and Loet Leydesdorff
Zhejiang University, Zhejiang University and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 86 (628,746)

Abstract:

Loading...

References to patents; Journal maps; Overlay; Science-technology interface

52.

Have Quadruple and Quintuple Helices Emerged? Metaphors, Project Titles, and Empirical Research

Number of pages: 13 Posted: 01 Jun 2022
Helen Lawton Smith and Loet Leydesdorff
University of London and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 85 (633,161)

Abstract:

Loading...

triple helix, quadruple, quintuple helices, Simmel’s triad, Lewontin

53.

Innovation as a Nonlinear Process, the Scientometric Perspective, and the Specification of an Innovation Opportunities Explorer

Technology Analysis & Strategic Management, 25(6), 641-653.
Number of pages: 25 Posted: 29 Oct 2012 Last Revised: 10 Jan 2022
Loet Leydesdorff, Daniele Rotolo and Wouter de Nooy
University of Amsterdam - Amsterdam School of Communication Research (ASCoR), SPRU (Science Policy Research Unit), University of Sussex and Amsterdam School of Communication Research (ASCoR), University of Amsterdam
Downloads 77 (670,468)

Abstract:

Loading...

innovation, data-mining, scientometrics, network analysis, database, mapping

54.

'Interaction' Versus 'Action' in Luhmann's Sociology of Communication

Colin B. Grant (Ed.), Rethinking Communicative Interaction: New Interdisciplinary Horizons. Amsterdam, John Benjamins, Forthcoming
Number of pages: 21 Posted: 16 Jun 2013 Last Revised: 02 Aug 2013
Loet Leydesdorff
University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 74 (685,458)
Citation 2

Abstract:

Loading...

55.

Philips en de Wetenschap (Philips and Science)

Noor Blom, Bob van Dijk, Herbert van Erkelens, Ernst Homburg, Egbert van der Poel, Ruud de Ruyter, Huib Schwab, Annemarie van de Vusse, and Loet Leydesdorff (1980). Philips en de Wetenschap. Amsterdam: SUA. ISBN 90 6222 057 6
Number of pages: 194 Posted: 21 Jun 2019
Loet Leydesdorff
University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 72 (695,984)

Abstract:

Loading...

Philips, STS, solid-state physics, science studies

56.

Are Brazilian Innovation Systems Innovative? Regional and Sectorial Decompositions of Triple-Helix Synergies

Number of pages: 26 Posted: 21 Apr 2022
Mariza Almeida, Igone Porto Gomez and Loet Leydesdorff
Federal University of the State of Rio de Janeiro, University of the Basque Country and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 71 (701,348)
Citation 2

Abstract:

Loading...

Innovation system, triple helix, synergies, geography, technology, Brazil

57.

The Self-Organization of Meaning and the Reflexive Communication of Information

Number of pages: 34 Posted: 11 Jan 2016
University of Amsterdam - Amsterdam School of Communication Research (ASCoR), University of California Merced, Department of Management of Complex Systems and National Research University Higher School of Economics
Downloads 70 (706,758)
Citation 6

Abstract:

Loading...

redundancy, horizontal and vertical differentiation, codification, triple helix, reflection

58.

'Structure'/'Action' Contingencies and the Model of Parallel Distributed Processing

Journal for the Theory of Social Behaviour 23(1) (1993) 47-77
Number of pages: 39 Posted: 28 Jan 2013
Loet Leydesdorff
University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 65 (735,197)
Citation 3

Abstract:

Loading...

59.

Bibliometric Perspectives on Medical Innovation using the Medical Subject Headings (MeSH) of PubMed

Journal of the American Society for Information Science and Technology, 63(11), 2239-2253.
Number of pages: 39 Posted: 05 Apr 2012 Last Revised: 10 Jan 2022
Loet Leydesdorff, Daniele Rotolo and Ismael Rafols
University of Amsterdam - Amsterdam School of Communication Research (ASCoR), SPRU (Science Policy Research Unit), University of Sussex and Ingenio (CSIC-UPV), Universitat Politècnica de València
Downloads 63 (747,248)
Citation 2

Abstract:

Loading...

map, innovation, drugs, equipment, disease, PubMed, Medline

Journal Portfolio Analysis for Countries, Cities, and Organizations: Maps and Comparisons?

SWPS 2015-11
Number of pages: 16 Posted: 08 Mar 2016
Loet Leydesdorff, Gaston Heimeriks and Daniele Rotolo
University of Amsterdam - Amsterdam School of Communication Research (ASCoR), Utrecht University and SPRU (Science Policy Research Unit), University of Sussex
Downloads 37 (986,410)

Abstract:

Loading...

map, journal, portfolio, firm, university, city, country

Journal Portfolio Analysis for Countries, Cities, and Organizations: Maps and Comparisons?

Journal of the Association for Information Science and Technology (in press) Forthcoming
Number of pages: 16 Posted: 14 Apr 2015
Loet Leydesdorff, Gaston Heimeriks and Daniele Rotolo
University of Amsterdam - Amsterdam School of Communication Research (ASCoR), Utrecht University and SPRU (Science Policy Research Unit), University of Sussex
Downloads 23 (1,141,321)

Abstract:

Loading...

map, journal, portfolio, firm, university, city, country

61.

Challenges for Regional Innovation Policies in CEE Countries: Spatial Concentration and Foreign Control of US Patenting

Number of pages: 29 Posted: 16 Jul 2013 Last Revised: 17 Jul 2013
Balázs Lengyel, Tamás Sebestyén and Loet Leydesdorff
Hungarian Academy of Sciences (HAS) - Institute of Economics CERS-HAS (IEHAS), University of Pécs, Faculty of Business and Economics and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 60 (765,997)
Citation 4

Abstract:

Loading...

patents, map, Central and Eastern Europe, Germany, post-socialism

62.

Werknemers en het Technologisch Vernieuwingsbeleid (Employees and Technological Innovation Policies)

Leydesdorff, L. (1984). Werknemers en het Technologisch Vernieuwingsbeleid. Amersfoort: De Horstink.
Number of pages: 334 Posted: 17 Jun 2019
Loet Leydesdorff
University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 58 (779,097)

Abstract:

Loading...

innovation, trade-unions, policy, science shop, chemical industry, enterprise council

63.

Dimensions of Citation Analysis

Science, Technology & Human Values, 15(3) (1990) 305-335
Number of pages: 35 Posted: 12 May 2014
Loet Leydesdorff and Olga Amsterdamska
University of Amsterdam - Amsterdam School of Communication Research (ASCoR) and University of Amsterdam
Downloads 56 (792,750)
Citation 1

Abstract:

Loading...

64.

Sociological and Communication - Theoretical Perspectives on the Commercialization of the Sciences

Science & Education, Forthcoming
Number of pages: 35 Posted: 09 Apr 2012
Loet Leydesdorff
University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 55 (799,876)

Abstract:

Loading...

triple helix, self-organization, university-industry relations, codification, synergy

65.

The Effects of FDI on Innovation Systems in Hungarian Regions: Where is the Synergy Generated?

Regional Statistics, 2015, Vol 5, No 1: 3-24
Number of pages: 22 Posted: 25 Sep 2015 Last Revised: 26 Sep 2015
Balázs Lengyel and Loet Leydesdorff
Hungarian Academy of Sciences (HAS) - Institute of Economics CERS-HAS (IEHAS) and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 54 (807,008)
Citation 3

Abstract:

Loading...

regional innovation systems, innovation system function, synergy, entropy, foreign firms

66.

Uncertainty and the Communication of Time

Systems Research and Behavioral Science 11(4) (1994) pp. 31-51
Number of pages: 35 Posted: 10 Dec 2012
Loet Leydesdorff
University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 46 (869,401)
Citation 2

Abstract:

Loading...

time, communication, cosmology, epistemology, self-organization

67.

Reference Publication Year Spectroscopy (RPYS): Origins and Applications of a Research Program [2014-2018]

Number of pages: 6 Posted: 02 Jun 2021
Loet Leydesdorff and Jordan A. Comins
University of Amsterdam - Amsterdam School of Communication Research (ASCoR) and Social and Behavioral Sciences Department, The MITRE Corporation, McLean, VA, United States
Downloads 43 (895,257)

Abstract:

Loading...

rpys, mult-rpys, algorithmic historiography, citation classics

68.

Quantitative Theory of Meaning. Application to Financial Markets. EUR/USD case study

Number of pages: 49 Posted: 12 Nov 2024
Inga Ivanova, Grzegorz Rzadkowski and Loet Leydesdorff
National Research University Higher School of Economics, Warsaw University of Technology and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 41 (913,179)
Citation 1

Abstract:

Loading...

information, meaning, non-linearity, EUR/USD financial market, model Paper type Research paper

69.

The Relation Between Synergy and Cycle Values in the Regional Innovation Systems in Norway

Higher School of Economics Research Paper No. WP BRP 98/STI/2019
Number of pages: 34 Posted: 13 Sep 2019
Inga Ivanova, Øivind Strand and Loet Leydesdorff
National Research University Higher School of Economics (Moscow), Norwegian University of Science and Technology (NTNU) and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 40 (922,550)

Abstract:

Loading...

knowledge base, innovations, triple helix, cyclic processes

70.

Universitaire en Economische Pieken (Mountains and Valleys in University and Economics Research in the Netherlands)

ESB 101 (4742), 13 oktober 2016, 678-681
Number of pages: 7 Posted: 11 Oct 2016
W. Dolfsma and Loet Leydesdorff
University of Groningen School of Economics and Business and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 40 (922,550)

Abstract:

Loading...

top-10%; economie; ranking; universiteiten

71.

Between Texts and Contexts: Advances in Theories of Citation? (A Rejoinder)

Scientometrics 44 (1999) 169-182
Number of pages: 16 Posted: 15 Jun 2013
Loet Leydesdorff and Paul Wouters
University of Amsterdam - Amsterdam School of Communication Research (ASCoR) and Leiden University - Centre for Science and Technology Studies
Downloads 37 (951,555)
Citation 1

Abstract:

Loading...

72.

'Interdisciplinarity' and 'Synergy' in the Œuvre of Judit Bar-Ilan

Number of pages: 22 Posted: 19 Apr 2020
Loet Leydesdorff and Lutz Bornmann
University of Amsterdam - Amsterdam School of Communication Research (ASCoR) and Max Planck Society for the Advancement of the Sciences
Downloads 36 (961,504)

Abstract:

Loading...

Interdisciplinarity, Synergy, Priority Programs, Reviews, Measurement, Redundancy

73.

Hyperincursive Cogitata and Incursive Cogitantes: Scholarly Discourse as a Strongly Anticipatory System

Leydesdorff, L. (2014). Hyperincursive Cogitata and Incursive Cogitantes: Scholarly Discourse as a Strongly Anticipatory System. International Journal of Computing Anticipatory Systems, 28, 173-186.
Number of pages: 14 Posted: 06 Jan 2015
Loet Leydesdorff
University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 35 (971,708)

Abstract:

Loading...

incursion, meaning, codification, hyperincursion, discourse

74.

The Measurement of “Interdisciplinarity” and “Synergy” in Scientific and Extra-Scientific Collaborations

Information Matters, Vol. 1, No. 9, 2021
Number of pages: 3 Posted: 07 Dec 2022
Loet Leydesdorff
University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 19 (1,158,060)

Abstract:

Loading...

Interdisciplinarity, synergy, Collaboration

75.

A Comparison of the Knowledge-Based Innovation Systems in the Economies of South Korea and the Netherlands Using Triple Helix Indicators

University of Illinois at Urbana-Champaign's Academy for Entrepreneurial Leadership Historical Research Reference in Entrepreneurship
Posted: 17 Nov 2009
Han Woo Park, Heung Deug Hong and Loet Leydesdorff
affiliation not provided to SSRN, affiliation not provided to SSRN and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)

Abstract:

Loading...

Innovation systems, U.S. Patent & Trademark Office (USPTO), Patent portfolios, Biomedical research, R&D, Patents, Biotechnology industry, Triple helix model

76.

"While a Storm is Raging on the Open Sea": Regional Development in a Knowledge-Based Economy

University of Illinois at Urbana-Champaign's Academy for Entrepreneurial Leadership Historical Research Reference in Entrepreneurship
Posted: 09 Nov 2009
Loet Leydesdorff
University of Amsterdam - Amsterdam School of Communication Research (ASCoR)

Abstract:

Loading...

Mode 2 innovation system, Economic models, Innovation process, Knowledge base, Knowledge economies, Knowledge production, University-industry relations, Triple helix model, Social networks, Regional development, Information dissemination, Economic indicators

77.

Measuring the Knowledge Base of an Economy in Terms of Triple-Helix Relations Among 'Technology, Organization, and Territory.'

University of Illinois at Urbana-Champaign's Academy for Entrepreneurial Leadership Historical Research Reference in Entrepreneurship
Posted: 09 Nov 2009
Loet Leydesdorff, W. Dolfsma and G. van der Panne
University of Amsterdam - Amsterdam School of Communication Research (ASCoR), University of Groningen School of Economics and Business and Delft University of Technology - Economics of Innovation

Abstract:

Loading...

Chambers of Commerce, Medium-technology firms, High technology industries, Information industry, Manufacturing industries, Firm location, Firm size, University-industry-government relations, Knowledge economies, Knowledge base, Institutional alliances, Regional economies

Other Papers (3)

Total Downloads: 92
1.

Reference Publication Year Spectroscopy (RPYS): Origins and Applications of a Research Program [2014-2018]

Number of pages: 6 Posted: 24 May 2021
Loet Leydesdorff
University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 48

Abstract:

Loading...

bibliometrics, longitudinal, citation, historiography

2.

„Herr Obersturmbahnführer, gestatten Sie daß Ich rede?“

Number of pages: 38 Posted: 05 Jan 2023
Loet Leydesdorff
University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 35

Abstract:

Loading...

3.

Replicability and the Public/Private Divide

Letter to the Editor of the Journal of the Association for Information Science and Technology, Forthcoming
Number of pages: 3 Posted: 29 Sep 2015 Last Revised: 21 Feb 2017
Loet Leydesdorff, Caroline S Wagner and Lutz Bornmann
University of Amsterdam - Amsterdam School of Communication Research (ASCoR), Independent and Swiss Federal Institute of Technology Zurich
Downloads 9

Abstract:

Loading...

Web-of-Science, top-1%, highly-cited, Brazil, political economy, science indicators