The Price Effects of Hospital Mergers: A Case Study of the Sutter-Summit Transaction
Federal Trade Commission - Bureau of Economics
November 14, 2008
Bureau of Economics Working Paper No. 293
We conduct a retrospective study of the Sutter-Summit hospital merger to assess whether antitrust enforcement in this matter was appropriate. This consummated merger combined two hospitals located close together in the Oakland-Berkeley region of the San Francisco Bay Area. The greater metropolitan area contained many other hospitals that offered a similar range of services, but which were located farther away. A central issue raised by the Sutter-Summit transaction was whether travel costs were low enough such that these hospitals were a sufficient constraint on the merging parties to prevent an anticompetitive price increase. We use detailed claims data from three large health insurers to compare the post-merger price change for the merging parties to the price change for a set of control group hospitals. Our results show that Summit's price increase was among the largest of any comparable hospital in California, indicating this transaction may have been anticompetitive.
Number of Pages in PDF File: 30
Keywords: merger retrospective, hospital, competition
JEL Classification: L1, L41, I11working papers series
Date posted: November 17, 2008
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