A dynamic common resource model: Stochastic shocks and consumption externalities

Riku Watanabe ()
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Riku Watanabe: Graduate School of Economics, Osaka University

No 24-09, Discussion Papers in Economics and Business from Osaka University, Graduate School of Economics

Abstract: This study introduces uncertainty into a simple growth model of common capital accumulation by considering consumption externalities. We consider two equilibrium concepts, including the Markovperfect Nash equilibrium and cooperative solution, and examine how uncertainty affects the difference in the growth of common capital. Our results show that individuals’ attitudes toward uncertainty change depending on the consumption externality type. Consumption externality types exist wherein the expected growth rate of common capital increases as uncertainty increases. We conclude that the problem of the “tragedy of the commons†is improved by greater uncertainty if individuals demonstrate jealousy and “keeping up with the Joneses,†or admiration and “running away from the Joneses.â€

Keywords: Stochastic differential games; Resource extraction; Consumption externalities; Markovperfect Nash equilibrium (search for similar items in EconPapers)
JEL-codes: C73 E21 Q20 (search for similar items in EconPapers)
Pages: 27 pages
Date: 2024-09
New Economics Papers: this item is included in nep-gro and nep-gth
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