On price discrimination, parallel trade and the availability of patented drugs in developing countries

摘要

This paper examines the effect of product Patent Act and parallel trade on the availability of an essential drug in the developing countries. Price discrimination by a Multinational Corporation (MNC) alleviates the problem of non-availability of the drug in a developing country compared to uniform pricing strategy. Incorporating an upstream-downstream market structure we show that in the presence of parallel trade 'a form of arbitrage' by traders the MNC cannot successfully discriminate the prices for its product. The analysis however, indicate that if the market size of the developing nation is relatively large, then with Cournot competition among the traders, the manufacturer earns higher profit by allowing parallel trade than by perfectly discriminating the prices for its product. Under Bertrand competition, the strategy to allow parallel trade always dominates the strategy to restrain it.