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Title: Retail Mergers: Buyer Power and Product Variety

Author(s): Roman Inderst and Greg Shaffer

Publication Date: February 2004

Keyword(s): buyer power, horizontal mergers and retailing

Programme Area(s): Industrial Organization

Abstract: This Paper analyses the impact of retail mergers on product variety. We show that a merging firm may want to enhance its buyer power vis a vis suppliers by delisting products and committing to a ?single-sourcing? purchasing strategy. Anticipating this, suppliers will strategically choose to produce less differentiated products, which further reduces product variety. If negotiations are efficient the loss in product variety reduces overall industry profit and, possibly, also consumer welfare. With linear tariffs, however, there may be a countervailing effect as the more powerful retailer passes on lower input prices to final consumers.

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Bibliographic Reference

Inderst, R and Shaffer, G. 2004. 'Retail Mergers: Buyer Power and Product Variety'. London, Centre for Economic Policy Research. https://cepr.org/active/publications/discussion_papers/dp.php?dpno=4236