JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org.When an antidumping policy involves the imposition of duties, the threat of antidumping enforcement may alter strategic behavior under imperfect competition. This point is illustrated in a model where the foreign firm is a monopolist in its local market, but competes with a domestic firm in the home country's market. The welfare effects of an antidumping policy are examined under quantity-setting and price-setting behavior with either perfect or imperfect substitutes. Imposing an antidumping policy frequently improves domestic welfare'under quantity-setting behavior, and typically worsens it under price-setting behavior. Surprisingly, foreign welfare may improve.

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We analyze the price-formation process in an infinite-horizon oligopoly model where hydroelectric generators engage in dynamic price-based competition. The analysis focuses on the role of “indifference” prices, i.e., prices that equate the gains from releasing or storing water. Strategies where players bid their indifference prices and the marginal player undercuts the lowest-cost unsuccessful bidder constitute a Markov Perfect Equilibrium (MPE) under appropriate conditions. These conditions involve symmetric production capacity and nonfractional (i.e., “all or nothing”) output by successful bidders. Although the MPE solution represents an equilibrium consistent with dynamic strategic behavior, it requires computational sophistication by market participants. However, a basic “learning” procedure involving indifference prices converges to an MPE.

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