Network Effects, Market Structure and Industry Performance
2012/06/05
研討會日期 : 2012-06-05
時間 : 14:30
主講人 : Professor Rabah Amir
地點 : Conference Room B110
演講者簡介 : Rabah Amir received his Ph.D. in Economics from University of Illinois, Urbana. He is currently serving as Eller Professor of Economics at University of Arizona. His research field is in game theory, industrial organization, economic theory and economic dynamics.
演講摘要 : This paper analyzes oligopolistic markets with network externalities. Exploiting a minimal complementarity structure on the model primitives that allows for pure network goods, we prove existence of nontrivial fulfilled-expectations equilibrium. We formalize the concept of industry viability, investigate its determinants, and show it improves with more firms in the market and/or by technological progress. These results enlighten some conclusions from case studies in the strategy literature. We also characterize the effects of market structure on industry performance, which depart substantially from ordinary markets. The approach relies on lattice-theoretic methods, supplemented with basic insights from nonsmooth analysis.
