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Contribution Details

Type Working Paper
Scope Discipline-based scholarship
Title Distributional comparative statics with heterogeneous agents
Organization Unit
Authors
  • Andreas Hefti
Language
  • English
Institution University of Zurich
Series Name Working paper series / Department of Economics
Number 237
ISSN 1664-7041
Number of Pages 56
Date 2016
Abstract Text We propose a formal way to systematically study the differential effects of exogenous shocks in economic models with heterogeneous agents. Our setting applies to models that can be rephrased as "competition for market shares" in a broad sense. We show that even in presence of any number of arbitrarily heterogeneous agents, a single recursion relation characterizes the distributional pattern of equilibrium market shares and related measures. We identify the general conditions under which the market share function rotates, thereby either causing more or less equality among the agents. Our setting highlights the exceptional rule that power functions play for the distributional effects. We apply our method across economic models, including examples from monopolistic competition, discrete choice, partial and general equilibrium theory and contest theory.
Official URL http://www.econ.uzh.ch/static/wp/econwp237.pdf
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Keywords Heterogeneity, inequality, monopolistic competition, general equilibrium, contest theory, Heterogenität, Ungleichheit, Monopol, allgemeines Gleichgewicht, Wettbewerbstheorie, Marktanteil