How Networked Worlds Evolve: Europe, the World Economy, Biotechnology, and Ring Cohesion

Session 1. Population Dynamics and Sociopolitical Violence

This discussion of long-cycles in history presents the work of Peter Turchin that is the basis for the civilizational network modeling in Thursday's talk. Some of the work of the Moscow evolutionary school will also be discussed. Last year we submitted a large research proposal to the NSF for collaborative work on these topics and much of that work is now being submitted for publication, but provides a base for further research.

Peter Turchin's Cliometrics web site - read everything you can off this site

Population Dynamics and Warfare: preprint Turchin and Korotayev; Addendum; Supplementary
version 2: Turchin and Korotayev on Warfare and Population Density
Understanding the meaning of dynamical interaction: Turchin's nature article
Peter Turchin, 2003, Historical Dynamics: Why States Rise and Fall. Princeton: Princeton University Press, in the series Princeton Studies in Complexity. It has chaps 2-4 on Geopolitics

Turchin: Chapters Two, Three and  Four (68 pages)

Peter Turchin Dynamical Analysis of Socio-Economic Oscillations: England, 1100-1900


Session 2. Thurs 21. 2150 SSPB. Simulating feedback processes in social networks: Models for Kinship, Intercity Networks, and Biotechnology

Part one deals with a general simulation of feedback processes in networks of all sorts

Part two details some linkages with q-Entropy as a metric for generalizing the laws of thermodynamics to nonindependent events in networks

Edge Based Model simulation for alpha = 0 (start), beta=1.9 (distance decay), gamma = 0 (route), N=500, steps of 15 shown in figures with black lines as tree-like links to new nodes, red lines are feedback links at various (clickable) distances




Session 3. Tues 26. 2112 SSPA. The Rise of Europe as a Trading Region and the Dynamics of Evolutionary Entailments: Intercity Trade Network Dynamics in the context of larger historical dynamics of Population and Sociopolitical Violence Intercity Trade Network Dynamics in the context of larger historical dynamics

This talks uses the framework of the long historical cycle of the late Medieval period in Europe, to examine how the intercity network of trade that grew up in that period formed a base for the Renaissance in Europe and the rise of the modern world system on a global scale, of which Europe was a part. The database draws on a collaboration with Peter Spufford, whose book Power and Profit: The Merchant in Medieval Europe forms the basis for a systematic network study of the evolutionary dynamics of European production systems and industries and for testing network hypotheses about the dynamics of the trading and political systems.

Part one of this talks deals with The Dynamics of Evolutionary Entailments among changing industry configurations across cities.

Part two, a continuation of the same powerpoint presentation, deals with the evolutionary dynamics of the intercity networks, and discusses the next stage of the research project that will expand the network database to include India, Mongolia and China

Session 4. Thurs 28. 2150 SSPB. Retrospect and Prospects for Theories of Network Dynamics and Ring Cohesion: Kinship Networks, Intercity Networks, and Biotechnology Networks

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Evolution of the Biotechnology Network

Abstract: We develop and test, using McFadden's discrete choice statistical modeling applied to network dynamics, four alternative logics of attachment - - accumulative advantage, homophily, follow-the-trend, and multiconnectivity - - to account for the development of interorganizational collaboration in the field of biotechnology. The commercial field of the life sciences is characterized by wide dispersion in the sources of basic knowledge and rapid development of the underlying science, fostering collaboration among a broad range of institutionally diverse actors. We map the network dynamics of the field over the period 1988-99. Using multiple novel methods, including analysis of network degree distributions, network visualizations, and multi-probability models to estimate dyadic attachments, we demonstrate how a preference for diversity shapes network evolution. Collaborative strategies pursued by early commercial entrants are supplanted by strategies influenced more by universities, research institutes, venture capital, and small firms. As organizations increase both the number of activities around which they collaborate and the diversity of organizations with which they are linked, cohesive subnetworks form that are characterized by multiple, independent pathways. These structural components, in turn, condition the choices and opportunities available to members of a field, thereby reinforcing an attachment logic based on connection to partners that are diversely and differently linked. The dual analysis of network and institutional evolution offers a compelling explanation for the decentralized structure of this science-based field.




Evolution of Kinship Systems

    Abstracts and links to KINSHIP and GENEALOGICAL articles in PDF format - Douglas R. White

      2005 Douglas R. White. Ring Cohesion in Marriage and Social Networks Forthcoming: Social Networks special issue edited by Alain Degenne Mathematiques, informatique, et sciences humaines Journal of the Ecole des Hautes Etudes en Science Sociales, Paris Download: PDF RingCohesionMarriage.pdf Tools for Marriage Network Analysis

      2005 Klaus Hamberger, Michael Houseman, Elizabeth Daillant, Douglas R. White and Laurent Barry. Matrimonial ring structures Forthcoming: Social Networks special issue edited by Alain Degenne Mathematiques, informatique, et sciences humaines Journal of the Ecole des Hautes Etudes en Science Sociales, Paris Download: PDF MatrimonialRingStructure.pdf Tools for Marriage Network Analysis

    see additional articles in pdf