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American Economic Review Vol. 106 No. 7 2016

Sequential Markets, Market Power, and Arbitrage

Koichiro Ito1; Mar Reguant2

1 Harris School of Public Policy, University of Chicago, 1155 East 60th Street, Chicago, IL 60637 (e-mail: ) · 2 Department of Economics, Northwestern University, 2001 Sheridan Road, Evanston, IL 60208 (e-mail: )

Abstract

We develop a framework to characterize strategic behavior in sequential markets under imperfect competition and restricted entry in arbitrage. Our theory predicts that these two elements can generate a systematic price premium. We test the model predictions using microdata from the Iberian electricity market. We show that the observed price differences and firm behavior are consistent with the model. Finally, we quantify the welfare effects of arbitrage using a structural model. In the presence of market power, we show that full arbitrage is not necessarily welfare-enhancing, reducing consumer costs but increasing deadweight loss.

DOI
10.1257/aer.20141529
Volume
106
Issue
7
Pages
1921-1957
Language
en
Sources
bibtex:phds-export.bib openalex crossref

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