UC Davis Agricultural and Resource Economics

Ignacia Mercadal, Columbia University

Dynamic competition and arbitrage: The role of financial players

Date and Location

Wednesday, October 24, 2018, 3:30 PM - 5:00 PM
Giannini Library Conference Room, 4101 Social Sciences and Humanities

Abstract

I study the role of purely financial players in electricity markets, where they trade alongside physical buyers and sellers. Using detailed individual data, I examine physical and financial firms' response to regulation that exogenously increased financial trading. I find this reduced generators' market power and increased consumer surplus. I develop a structural test of static Nash equilibrium, and reject it in favor of dynamic competition consistent with tacit collusion by a group of firms. To implement the test, I present a new method to study the competitive structure of electricity markets using machine learning tools to define markets.

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