Competition, Monopoly and Aftermarkets

Mannheim Competition Policy Forum

Consider a durable goods producer that has the option of monopolizing an aftermarket such as repair for its own product. An important question is whether such monopolization reduces welfare? We show that the anwer to this question is frequently no. In particular, we explore three models that illustrate various ways in which aftermarket monopolization can reduce inefficiencies and thus increase social welfare and frequently also consumer welfare. Our paper shows that efficiency enhancing aftermarket monopolization may be much more common than previous literature suggests.

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  •  Michael Waldman
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    Michael Waldman // Cornell University

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Research Associate, Prof. Dr. Kai Hüschelrath
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