Antitrust & Competition Policy Blog

Editor: D. Daniel Sokol
University of Florida
Levin College of Law

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Monday, April 25, 2011

Estimating the Lock-in Effects of Switching Costs from Firm-Level Data

Posted by D. Daniel Sokol

Gabor Kezdi (Institute of Economics Hungarian Academy of Sciences) and Gergely Csorba (Institute of Economics Hungarian Academy of Sciences) have a paper Estimating the Lock-in Effects of Switching Costs from Firm-Level Data.

ABSTRACT: This paper proposes a simple method for estimating the lock-in effects of switching costs from firm-level data. We compare the behavior of already contracted consumers to the behavior of new consumers as the latter can serve as contrafactual to the former. In panel regressions on firms' incoming and quitting consumers, we look at the differential response to price changes and identify the lock-in effect of switching costs from the difference between the two. We illustrate our method by analyzing the Hungarian personal loan market and find strong lock-in effects.

http://lawprofessors.typepad.com/antitrustprof_blog/2011/04/estimating-the-lock-in-effects-of-switching-costs-from-firm-level-data-.html

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