Macroeconomic Effects of Market Structure Distortions

Flavien Moreau,Ludovic Panon

Published 2022 in Social Science Research Network

ABSTRACT

This paper develops a quantitative framework with heterogenous firms and endogenous markups to assess the macroeconomic implications of sectoral distortions to market structure, namely the existence of cartels. The direct negative welfare impact of cartels is compounded by increases in non-colluders’ prices (umbrella pricing). We then build a dataset on firm- and sector-level collusive cases constructed from the textual analysis of two decades of antitrust decisions taken by the French Competition Authority that we combine with exhaustive administrative firm microdata to test the predictions of our model.

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