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NBER Working Papers and Publications
|January 1994||The Nonoptimality of Optimal Trade Policies: The U.S. Automobile Industry Revisited, 1979-1985|
in Empirical Studies of Strategic Trade Policy, Paul Krugman and Alasdair Smith, editors
|September 1989||The Non-Optimality of Optimal Trade Policy: The U.S. Automobile Indust ry Revisited, 1979-1985|
with , : w3118
We examine the sensitivity of simple calibration models of trade in imperfectly competitive industries to changes in model specification, as well as to changes in the calibration parameters. We find that not just the magnitude, but also the sign of the optimal trade policies is very sensitive to the change in model specification. Indeed, use of policies derived from the 'wrong' model can reduce welfare from the status quo. However, the welfare gains to be obtained from application of the 'correct' model remain limited. Calibration models nonetheless provide useful estimates of firm and market behavior over time, as well as disaggregated elasticities of demand. We conclude that careful empirical work is necessary to guide model selection. For the present, the case for activist trade policy ...
Published: Empirical Studies of Strategic Trade Policyedited by Paul Krugman and Alasdair Smith University of Chicago Press; 1994