2011

Social Interactions and Spillovers

Reprint No. 2011:20

Author(s): Antonio Cabrales, Antoni Calvó-Armengol and Yves ZenouYear: 2011 Title: Games and Economic Behavior Volume (No.): 72 (2) Pages: 339–360
Online article (restrictions may apply)


The aim of this paper is to provide a tractable model where both socialization (or network formation) and productive efforts can be analyzed simultaneously. This permits a fullfledged
equilibrium/welfare analysis of network formation with endogenous productive efforts and heterogeneous agents. We show that there exist two stable interior equilibria, which we can Pareto rank. The socially efficient outcome lies between these two equilibria. When the intrinsic returns to production and socialization increase, all equilibrium actions decrease at the Pareto-superior equilibrium, while they increase at the Pareto-inferior equilibrium. In both cases, the percentage change in socialization effort is higher (in absolute value) than that of the productive effort.


Reference:
Cabrales, Antonio, Antoni Calvó-Armengol and Yves Zenou (2011), "Social Interactions and Spillovers". Games and Economic Behavior 72(2), 339–360.

Global index of the sharing economy

Timbro SEI

2018 Bergh Funcke Wernberg - Timbro Sharing Economy Index-1fHemsidan.jpg

Andreas Bergh, IFN and Lund University, is one of the authors of this book. The Timbro Sharing Economy Index is the first global index of the sharing economy. The index has been compiled using traffic volume data and scraped data, and provides a unique insight into the driving factors behind the peer-to-peer economy.

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