Universiteit van Amsterdam 
Research My main scientific interests are social networks, organizations and evolution. Interests intertwined with these main themes are cooperation, conflict, social inequality, innovation and knowledge diffusion, organizational ecology, and organizational (in)capabilities. I'm one of the organizers of the Methods Lab of the Amsterdam Institute for Social Science Research (AISSR), a member of the Amsterdam Centre for Inequality Studies, and a fellow of the Amsterdam Institute for Advanced labour Studies (AIAS). Book 2008 Social networks: An introduction. New York, Routledge. See additional web materials. The pertaining igraph software is a package of open source program R. When I wrote the book, igraph had its own Graphical User Interface but as that creates tacit problems (different computations than you might expect), I strongly recommend to use the Command Line Interface instead; see the manual. Recent papers 2011 Detecting communities through network data. A comment on: The temporal structure of scientific consensus formation (with V.A. Traag and Justus Uitermark). 2011 The social network, background, and school track of adolescent smokers in the Netherlands (with Chip Huisman). 2011 Cultural niche
dimensionality and small firm subsistence
(with
Gábor Péli). 2011 Market positioning: The shifting effects of niche overlap (with Daniela Grunow, Mark AAM Leenders, Ivar Vermeulen, and Jeroen Kuilman). Forthcoming in Industrial and Corporate Change. 2010 Network Diversity and Economic Development: a Comment. arXiv. Selection of publications 2009 Community detection in networks with positive and negative links (with V.A. Traag). Physical Review E 80, 036115. 2009 Knowledge specialization, knowledge brokerage,
and the uneven growth of technology domains (with Gianluca Carnabuci). Social Forces 88: 607-641. 2008 The institutional embeddedness of social capital: A multilevel investigation across 24 countries (with Ferry Koster). Policy and Politics 36: 397-412. 2007 The cricket and the ant: organizational trade-offs in changing environments (with Gábor Péli). Journal of Mathematical Sociology 31: 205-235. 2006 Networks embedded in n-dimensional space: the impact of dimensionality change (with Gábor Péli). Social Networks 28: 449-453. 2003 Bounded rationality at large: network externalities in airwaves auctions (with Hendrik Jan Visser and Wouter van Rossum). Social Forces 81: 167-171. 2003 A note on structural holes theory and niche overlap (co-authors Gianluca Carnabuci and Ivar Vermeulen). Social Networks 25: 97-101. 2002 A Logical Toolkit for Theory (Re)construction (with Ivar Vermeulen). Sociological Methodology 32: 183-217. Among sociologists and others, there exist a number of pervasive misunderstandings about formalization, which I attempt to clarify in a Web document that was initially an appendix, but is no longer part of the Logical Toolkit paper. 2001 The Logic of Organizational Markets: Thinking Through Resource Partitioning Theory (with Ivar Vermeulen). Computational and Mathematical Organization Theory 7: 87-111. 2000 A Niche Width Model of Optimal Specialization (with Breanndán Ó Nualláin). Computational and Mathematical Organization Theory 6: 161-170. 1997 Niche Width Theory Reappraised. Journal of Mathematical Sociology 22: 201-220. 1997 Formalizing Organizational Ecology, PhD-thesis. Summary published in Logic in the Netherlands 1-1: 23-24 (1997). 1994 A Logical Approach to Formalizing Organizational Ecology (with Gábor Péli, Michael Masuch, Breanndán Ó Nualláin), American Sociological Review 59: 571-593. 1993 Logische formalisering in de sociale wetenschappen: een case study (with Gábor Péli, Michael Masuch, Breanndán Ó Nualláin). Mens en Maatschappij 4: 406-428. Popular 2006 De ideeënwereld als netwerk Techno, Oktober, pp.20-21. 2003 Wat voor netwerk heb je nodig in je eerste baan? Bedrijfskundig magazine 24-2: 12-13. 2003 Antropologie en fotografie: tweedehands automarkt in Cotonou - klik dan op "theorie en praktijk" (updated 2006) 2001 Book review of The Demography of Corporations and Industries, Carroll, G.R. and Hannan, M.T. (2000). Contemporary Sociology, January, pp.39-40. 1996 What theory is...: A reaction to Sutton and Staw's essay: `What theory is not' (with Michael Masuch, Jaap Kamps, Gábor Péli, and László Pólos). Administrative Science Quarterly Discussion Listserver 2 (1). Teaching
Past courses (in the Netherlands): Evolutionary Theory (in "R&B style," i.e. Richerson & Boyd's); Formal Theory (re)construction (my PhD project); Argumentation
(lite version of the former); Social Capital; Research Methods; Sociological Theory; and, History of
Labor Relations in the Netherlands (within a Labor Law course). Konstanz University (Summer 2011): Social Networks Jobs, background and educationAssistant Professor of Sociology, Universiteit van Amsterdam, 2001 - present. Assistant Professor of Organization and Management, Universiteit Twente, 2000 - 01. Assistant Professor of Organization and Management, Universiteit Groningen, 1998 - 00.
Supervised PhD students: Chip Huisman; Gianluca Carnabuci; Ivar Vermeulen; and, Post doc Maarten Marx, all of them on grants we received from the Dutch National Science Foundation (NWO).
PhD at the Institute of Logic, Language and Information/Applied Logic Laboratory in Amsterdam, 1993 - 97, cum laude. Bachelor and Master in Sociology at the Universiteit van Amsterdam, 1987 - 92, cum laude.
Autonomous photographer from 1995 onwards, resulting in publications (sometimes anthropological), and exhibitions in museums and art galleries.
Various jobs 1980 - 90, ranging from disc jockey and dentist assistant (in the Dutch army) to hotel receptionist.
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