Parallel trade, price discrimination, investment and price caps

Stefan Szymanski () and Tommaso Valletti ()

Economic Policy, 2005, vol. 20, issue 44, pages 705-749

Abstract: "Parallel trade is the resale of a product by a wholesaler in a market other than that intended by the manufacturer. One of its consequences is that manufacturers may be prevented from price discriminating between markets that have different willingness to pay for the product in question. Some legal regimes give the manufacturer the right to prohibit parallel trade, but others do not. We examine the policy implications of parallel trade in a world in which manufacturers invest in product quality, and have the possibility to develop different quality variants of their goods. We also consider the possibility that the authorities may impose price caps and compulsory licensing (as commonly occurs for some pharmaceutical products). We find that taking investment incentives into account makes parallel trade much less likely to enhance overall welfare, which implies that parallel trade in products intensive in R&D, such as pharmaceuticals, is less desirable than in fields such as branded consumer products. We also find that, somewhat surprisingly, the threat of parallel trade does not induce firms to market inferior versions of their products in poor countries. However, parallel trade is less likely to be detrimental to welfare when there are price caps, since compulsory licensing can mitigate the major cost of parallel trade (namely a refusal to supply a poor country market)." Copyright © CEPR, CES, MSH, 2005.

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