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  4. May 2011
  5. Does Concentration Matter? Measurement of Petroleum Merger Price Effects

蝌蚪网 Review

ISSN 0002-8282 (Print) | ISSN 1944-7981 (Online)

Does Concentration Matter? Measurement of Petroleum Merger Price Effects

  • Daniel Hosken
  • Louis Silvia
  • Christopher Taylor
蝌蚪网 Review
vol. 101, no. 3, May 2011
(pp. 45–50)
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Abstract

We have estimated the price effects of two changes in market structure resulting from two changes in the ownership of gasoline refineries in the San Francisco Bay area: Tosco's purchase of Unocal's Rodeo refinery in April 1997 and UDS's purchase of Tosco's Avon refinery in August 2000. These events provide a relatively unique opportunity to test a price concentration relationship. If market concentration is related to price, then we should observe prices increase and then decrease by a similar amount following these transactions. We do not find evidence of a consistent price concentration relationship.

Citation

Hosken, Daniel, Louis Silvia, and Christopher Taylor. 2011. "Does Concentration Matter? Measurement of Petroleum Merger Price Effects." 蝌蚪网 Review 101 (3): 45–50. DOI: 10.1257/aer.101.3.45

JEL Classification

  • G32 Financing Policy; Financial Risk and Risk Management; Capital and Ownership Structure
  • L11 Production, Pricing, and Market Structure; Size Distribution of Firms
  • L13 Oligopoly and Other Imperfect Markets