The Upward Pricing Pressure Test for Merger Analysis: An Empirical Examination
The Upward Pricing Pressure (UPP) test developed by antitrust economists Joseph Farrell and Carl Shapiro marks a new era in antitrust and provides an alternative to the traditional concentration-based tests in merger analysis. In addition to being free of market de nition, the UPP's appeal lies in its ease of use: one simple formula indicates whether a merging rm has an incentive to increase prices postmerger. This paper rst establishes the theoretical relationship between the UPP and the standard structural merger simulation, namely, that the UPP is a \singleproduct merger simulation" that ignores the re-equilibration of all other endogenous variables except that product's own price. To assess the consequence of this simpli cation, I compute \true" UPP values for a cross-section of airline markets using structurally estimated price elasticities, and confront them with the \gold standard" of a merger simulation. I examine the predictive accuracy of both the sign and magnitude of the UPP. I nd that it gives wrong sign predictions to an average 10% of the observations, and its value has an average correlation of 0:92 with the structurally simulated price changes. However, since this test is meant to bypass a complicated demand estimation, I then use the example of a simple logit demand to illustrate the consequence of using inaccurate demand-side inputs in the UPP: the test will give a wrong sign prediction over a much larger range of cost synergies. Lastly, I discuss the pass-through conditions for Farrell and Shapiro's proposition, demonstrate empirically that they are not innocuous, and show that their violation can lead to false positive results (type I errors) in the UPP.
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- Farrell, J. & Shapiro, C., 1988.
"Horizontal Mergers: An Equilibrium Analysis,"
17, Princeton, Woodrow Wilson School - Discussion Paper.
- Joseph Farrell and Carl Shapiro., 1988. "Horizontal Mergers: An Equilibrium Analysis," Economics Working Papers 8880, University of California at Berkeley.
- Farrell, Joseph & Shapiro, Carl, 1988. "Horizontal Mergers: An Equilibrium Analysis," Department of Economics, Working Paper Series qt0tp305nx, Department of Economics, Institute for Business and Economic Research, UC Berkeley.
- Werden, Gregory J, 1996.
"A Robust Test for Consumer Welfare Enhancing Mergers among Sellers of Differentiated Products,"
Journal of Industrial Economics,
Wiley Blackwell, vol. 44(4), pages 409-13, December.
- Werden, G.J., 1996. "A Robust Test for Consumer Welfare Enhancing Mergers Among Sellers of Differentiated Products," Papers 96-01, U.S. Department of Justice - Antitrust Division.
- Steven Berry & Panle Jia, 2010.
"Tracing the Woes: An Empirical Analysis of the Airline Industry,"
American Economic Journal: Microeconomics,
American Economic Association, vol. 2(3), pages 1-43, August.
- Steven Berry & Panle Jia, 2008. "Tracing the Woes: An Empirical Analysis of the Airline Industry," NBER Working Papers 14503, National Bureau of Economic Research, Inc.
- Sonia Jaffe & E. Glen Weyl, 2013. "The First-Order Approach to Merger Analysis," American Economic Journal: Microeconomics, American Economic Association, vol. 5(4), pages 188-218, November.
- Bulow, Jeremy I & Geanakoplos, John D & Klemperer, Paul D, 1985. "Multimarket Oligopoly: Strategic Substitutes and Complements," Journal of Political Economy, University of Chicago Press, vol. 93(3), pages 488-511, June.
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