NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

The Price Effects of a Large Merger of Manufacturers: A Case Study of Maytag-Whirlpool

Orley C. Ashenfelter, Daniel S. Hosken, Matthew C. Weinberg

NBER Working Paper No. 17476
Issued in October 2011
NBER Program(s):   IO   LE

Many experts speculate that U.S. antitrust policy towards horizontal mergers has been too lenient. We estimate the price effects of Whirlpool's acquisition of Maytag to provide new evidence on this debate. We compare price changes in appliance markets most affected by the merger to markets where concentration changed much less or not at all. We estimate price increases for dishwashers and relatively large price increases for clothes dryers, but no price effects for refrigerators or clothes washers. The combined firm's market share fell across all four affected categories and the number of distinct appliance products fell.

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Document Object Identifier (DOI): 10.3386/w17476

Published: Orley C. Ashenfelter & Daniel S. Hosken & Matthew C. Weinberg, 2013. "The Price Effects of a Large Merger of Manufacturers: A Case Study of Maytag-Whirlpool," American Economic Journal: Economic Policy, American Economic Association, vol. 5(1), pages 239-61, February. citation courtesy of

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