Title: Product Patent Reform and Its Impact on Korea's Pharmaceutical Industry
Author: La Croix, Sumner J.; Kawaura, Akihiko
Author Affiliation: U HI and East-West Center; Otaru U Commerce
Source: International Economic Journal, Spring 1996, v. 10, no. 1, pp. 109-124
Publication Date: Spring 1996
Abstract: Our analysis focuses on the effect of U.S. government pressure on Korea to adopt product patents for chemical and pharmaceutical products. American pressure began in November 1987 and ended with the Korean Legislature's passage of a new patent law in December 1986. We conduct an event study of the effect of the new patent law on the value of Korean pharmaceutical firms listed on the Korea Stock Exchange. Regression analysis shows that the new law induced excess returns of -74 percent over the 14-month analysis period. The results suggest that adoption of stronger patent laws reduced Korea's wealth.

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