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

71

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110

CROSSREF CITATIONS

88

Scholarly Papers (71)

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 6,518 (1,292)
Citation 12

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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 1,762 (11,699)
Citation 13

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Triple Helix, innovation, evolutionary, system, Mode 2

3.

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 1,256 (19,755)
Citation 7

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4.

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 738 (42,196)

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communication, viability, Beer, Luhmann, metagame

5.

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 696 (45,646)
Citation 4

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innovation, complex systems, reflexivity, synergy, translation

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 592 (56,396)
Citation 5

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STS, science studies, scientometrics, citation, Merton

7.

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 439 (81,424)
Citation 13

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

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 423 (85,102)
Citation 3

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

9.

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 314 (119,064)

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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 303 (123,701)

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

11.

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 286 (131,474)
Citation 1

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

12.

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 274 (138,021)
Citation 8

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13.

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 237 (158,761)
Citation 7

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sociology, impact, citation, Merton, German, journal

14.

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 212 (176,587)
Citation 2

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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 205 (182,192)

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

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

Research Policy, Forthcoming
Number of pages: 38 Posted: 11 May 2015 Last Revised: 05 Jan 2016
University of California Merced, Ernest and Julio Gallo Management Program, SPRU (Science Policy Research Unit), University of Sussex and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 167 (218,629)
Citation 2

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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, Ernest and Julio Gallo Management Program, SPRU (Science Policy Research Unit), University of Sussex and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 32 (566,188)
Citation 13

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

17.

'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 185 (199,967)
Citation 2

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innovation, redundancy, knowledge, code, options

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 184 (200,852)
Citation 1

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

19.

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
Downloads 176 (208,797)
Citation 2

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

20.

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 169 (216,229)
Citation 3

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

21.

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 167 (218,384)
Citation 2

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indicator, probabilistic entropy, niche, synergy

22.

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 166 (219,496)

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

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 135 (260,893)

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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 11 (720,823)

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

24.

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 138 (255,544)
Citation 1

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

25.

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), University of Jena - School of Economics and Business Administration and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 120 (283,907)
Citation 2

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

26.

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 120 (283,907)
Citation 6

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

27.

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 119 (285,668)

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

28.

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 111 (299,808)
Citation 3

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

29.

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 108 (305,568)
Citation 1

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Luhmann, sociology, operationalization, entropy, technology

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 102 (317,698)

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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 97 (328,237)
Citation 12

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32.

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 95 (332,562)

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33.

Strategic Intelligence on Emerging Technologies: Scientometric Overlay Mapping

Journal of the Association for Information Science and Technology, Forthcoming
Number of pages: 38 Posted: 27 Mar 2013 Last Revised: 08 Sep 2015
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 92 (339,435)
Citation 6

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

34.

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 90 (344,154)
Citation 2

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

35.

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 82 (364,299)

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

36.

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 80 (369,560)

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bibliometrics, indicator, evaluation

37.

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 78 (375,037)

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

38.

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 72 (392,239)
Citation 3

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knowledge base, probabilistic entropy, triple helix, spectral analysis

39.

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 67 (407,732)

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

40.

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 63 (420,939)
Citation 9

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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 55 (456,494)

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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 6 (763,044)

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42.

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 60 (431,207)
Citation 1

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

43.

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 55 (449,368)

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disruption, indicator, revision, bibliographic coupling

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 46 (494,061)
Citation 3

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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 8 (745,945)

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45.

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 49 (472,557)
Citation 1

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maps, portfolio, diversity, interdiscuplinarity

46.

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

Technology Analysis & Strategic Management (Forthcoming)
Number of pages: 25 Posted: 29 Oct 2012
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 49 (472,557)

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

47.

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, Ernest and Julio Gallo Management Program and National Research University Higher School of Economics
Downloads 45 (489,331)
Citation 3

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

48.

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

Journal of the American Society for Information Science and Technology, Forthcoming
Number of pages: 39 Posted: 05 Apr 2012 Last Revised: 15 Jul 2012
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 45 (489,331)
Citation 2

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

49.

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), MTA-PTE Innovation and Economic Growth Research Group and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 42 (502,629)
Citation 4

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

50.

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 39 (516,566)

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

51.

'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 38 (521,377)
Citation 2

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52.

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 33 (546,873)

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

53.

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 32 (552,150)

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

54.

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 32 (552,150)

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Philips, STS, solid-state physics, science studies

55.

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 30 (563,254)
Citation 4

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

56.

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 29 (569,035)

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top-10%; economie; ranking; universiteiten

57.

'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 26 (587,610)
Citation 3

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58.

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 25 (593,967)
Citation 1

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59.

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 22 (614,069)
Citation 1

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60.

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 19 (634,754)
Citation 2

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

61.

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 19 (634,754)
Citation 2

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time, communication, cosmology, epistemology, self-organization

62.

'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 18 (641,831)

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

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 10 (729,136)

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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 8 (745,945)

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

64.

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, Norwegian University of Science and Technology (NTNU) and University of Amsterdam - Amsterdam School of Communication Research (ASCoR)
Downloads 14 (670,709)

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knowledge base, innovations, triple helix, cyclic processes

65.

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 12 (685,964)

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incursion, meaning, codification, hyperincursion, discourse

66.

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 10 (701,320)

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

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 7 (724,695)

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rpys, mult-rpys, algorithmic historiography, citation classics

68.

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

Posted: 15 Apr 2021 Last Revised: 14 May 2021
Loet Leydesdorff and Helen Lawton Smith
University of Amsterdam - Amsterdam School of Communication Research (ASCoR) and affiliation not provided to SSRN

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

69.

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)

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

70.

"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)

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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

71.

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

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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 (2)

Total Downloads: 10
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 8

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bibliometrics, longitudinal, citation, historiography

2.

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 2

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