Monday, February 9, 2004
Marco Janssen,
Ph.D., IU Center for the Study of Institutions, Population and Environmental Change
"Cooperation in Commons Dilemmas and the role of Information, Motivation and Trust"
Abstract
A fundamental puzzle is the ability of humans to organize themselves in cooperative arrangements to govern the shared use of resources at multiple scales. The challenges of governing digital commons share some similarities with the challenges of governing natural commons. Preventing free-riding on the voluntary contributions of others and avoiding over-consumption of scarce shared resources are core problems for all commons. Many commons have been destroyed when governance arrangements do not help participants to cope with these problems. A key question in designing governance arrangements is why agents cooperate with strangers in one-shot social dilemma interactions. In systems like eBay, for example, significant transactions are made between strangers. Current academic research has focused on reputation systems as a source of cooperation, but reputation alone can not explain all empirical patterns. Agent-based computational models are used to investigate the conditions of cooperation between strangers. These agent-based models are tested on experimental data and show the importance of heterogeneity of preferences (selfish vs. altruistic). We investigate the role of reputation scores and other symbols to identify trustworthy others (degree of altruism). The understanding of the interplay of symbols and preferences of actors will produce new insights on the consequences of regulations to governing (digital) commons.
Marco Janssen is a research scientist at the Center for the study of Institutions, Population and Environmental Change, Indiana University, and has degrees in econometrics, operations research and mathematics. He is a member in the Board of Directors and the Board of Science of the Resilience Alliance. Janssen has published 1 monograph, 2 edited volumes, and 40 international journal articles in operations research, artificial intelligence, economics, ecology, and environmental studies. He worked during the 1990’s on integrated assessment models for global (climate) change at the Dutch National Institute for Public Health and the Environment (RIVM). He pioneered in the modeling of social-ecological systems as complex-adaptive systems, and worked in various locations on methodology and application of agent-based and systems dynamics models to study human-environmental interactions. Janssen is especially interested in how institutions evolve over time and what characteristics of complex social-ecological systems make them robust.
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