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This paper uses a dynamic computable general equilibrium model to simulate the effects of unilateral reductions by the U.S. in tariffs and "voluntary" export restraints (VER's). We consider 50 percent cuts in tariffs and in ad valorem VER equivalents, separately and in combination. The model features intertemporal optimization by households and firms, explicit adjustment dynamics, an integrated treatment of the current and capital accounts of the balance of payments, and industry disaggregation. Central findings include: (1) VER's are considerably more significant than tariffs in terms of the magnitude of the macroeconomic effects induced by their reduction; (2) while VER reductions enhance domestic welfare, unilateral tariff cuts reduce domestic welfare (as a consequence of U.S. monopsony power and associated adverse terms of trade effects); (3) international capital movements critically regulate the responses of the U.S. and foreign economies to these trade initiatives and produce significant differences between short and long-run effects; and (4) effects differ substantially across industries. Together, these findings indicate that simulation analyses that disregard international capital movements, adjustment dynamics, and industry differences may generate seriously misleading results
Intends to present the developments in the methodology and practice of CGE techniques as they apply to various issues in international trade policy. This title is suitable for academic researchers working in trade policy analysis and applied general equilibrium, and advanced graduate students in international economics.
The authors' model is the first large-scale computer simulation of the effects of changes in U.S. import quotas.
This book is for people who want to understand modern trade theory, particularly the Melitz model. It lays out Melitz theory from first principles and relates it to earlier theories of Armington and Krugman. For trade theory specialists, the book produces some significant conclusions. It identifies conditions under which Krugman and Melitz models produce essentially the same results for the welfare effects of trade liberalization as those obtained from Armington, and conditions under which this is not true. These findings will be of interest to academics and policy advisors who need to understand critiques of Armington by proponents of Krugman and Melitz. For computable general equilibrium (CGE) modelers, the book shows how Melitz-style CGE models can be calibrated, solved and interpreted. A major practical contribution of the book is to show how large-scale Armington models such as GTAP can be converted to Melitz by the addition of a small number of equations and minimal alteration of the original Armington model. The book describes computational experience in solving Melitz CGE models using GEMPACK software. This experience will be of interest to researchers currently attempting to solve Melitz-based CGE models. Almost all previous Melitz studies have used GAMS software. Authors of these studies have reported computational difficulties. These difficulties did not occur in this book’s GEMPACK-based computations. The book concludes that: (a) CGE modelers can embrace Melitz while retaining their Armington-based models as powerful interpretive devices; and (b) via GEMPACK, large-scale CGE models incorporating Melitz specifications can be solved with no more difficulty than similar-dimensioned Armington models.
Theoretical and applied work in industrial-organization approaches to international trade typically assume either that there are fixed numbers of firms, or that there is free entry and exit with a continuum of firms. This paper makes a first step toward a more realistic approach in which firms face discrete choices about the numbers and locations of their plants. The model is applied to the North American auto industry in the context of the draft North American Free Trade Agreement. Results include: (1) production appears to be excessively geographically diversified initially; (2) autos are produced in fewer locations as trade barriers are lowered; (3) a 'non-monotonicity' case is produced in which a plant is first closed and then reopened as trade barriers are progressively lowered; (4) an example of the misleading nature of marginalist analysis is presented in which plants in Canada and Mexico increase production when locations are fixed but closed down when locations are endogenous and optimized.
A theoretical model is developed and applied to the North American auto industry, motivated by the possibility of US-Mexico free trade. Special features of the model include (1) significant scale economies at the plant level, (2) imperfect competition among firms, (3) joint ownership of plants and production coordination across plants by each firm, (4) an (initial) ability of firms to segment markets, (5) a separate treatment of non-resident firms in determining oligopolistic markups. Using an applied GE model, we find that (A) the gains to Mexico are significant and the effects on the US and Canada are essentially zero following North American free trade if firms can continue to segment markets: (B) Because of the way that the North American multinationals determine markups, increased imports from Mexico do not result in a rationalization of US and Canadian production in the way it should if firms were strictly national. (C) Genuinely free trade for consumers (integrated markets) results in large gains for Mexico as the Mexican industry is forced to rationalize, while losses to the US and Canada are very small.
This book provides a much needed quantitative response to the classic question of whogains and who loses in trade liberalization and shows how important the process is for the globaleconomy. It contributes significantly to the debate concerning trade between developed anddeveloping countries.John Whalley describes and uses a numerical general equilibrium model of worldtrade to explore issues in the area of trade liberalization among major world trading areas - theEuropean Economic Community, the United States, Japan, and developing countries. His book is uniqueboth in using this framework to analyze world trading patterns, and in considering a number oftrading areas simultaneously within the same model. It is able to quantify the merits of alternativeactions in international trade policy, the ways that the interests of the EEC, the United States,and Japan are similar and ways in which they differ, and show how the interests of less developedcountries are affected by various trade liberalization initiatives.Part I provides a description ofthe model, data sources and adjustments to basic data, and methods for specification and solution ofthe model. Part II presents results from model applications along with policy conclusions.Applications include analysis of tariff cutting formulae in the Toyko Round, an evaluation of theTokyo Round trade agreement, examination of incentives for a retaliatory trade protection 'war'between world trade blocs, and analysis of the impact of protectionist policies on North-Southtrade.John Whalley is Professor of Economics at the University of Western Ontario.