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Trade Adjustment Dynamics and the Welfare Gains from Trade

George Alessandria, Horag Choi and Kim Ruhl ()
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George Alessandria: University of Rochester
Horag Choi: Monash University

No 1324, 2018 Meeting Papers from Society for Economic Dynamics

Abstract: We study how the transitions following a trade reform are shaped by the time it takes for new exporters to grow in the export market. We introduce time and risk into the xed-variable cost tradeo central to general equilibrium heterogeneous rm trade models: Investing in exporting gradually and stochastically lowers the costs of exporting. The model captures the tendency of new exporters to export on a small scale, to have low survival rates, and to take time to grow into large exporters. In the model, aggregate trade dynamics arise from producer-level decisions to invest in lowering their future variable export costs, and tari reforms generate time-varying trade elasticities. We show that the gains from reducing taris arise from substituting away from rm creation and towards export capacity. This is in stark contrast to the static models that dominate the literature. The strength of this substitution is determined largely by the size of new exporters and their ability to grow into successful exporters. We calibrate the model and estimate the welfare gains from reducing taris, which dier substantially from the long-run changes in consumption or trade. We show that the welfare gain cannot be recovered from a static trade model or from formulas based on those models. Because aggregate trade grows slowly, the long-run eects are strongly discounted and, thus, are not the key determinants of the welfare gains from a change in trade policy. We also nd that policy prescriptions based on static models can predict a loss from trade reform when our dynamic model predicts a gain.

New Economics Papers: this item is included in nep-dge and nep-int
Date: 2018
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Related works:
Working Paper: Trade Adjustment Dynamics and the Welfare Gains from Trade (2015) Downloads
Working Paper: Trade adjustment dynamics and the welfare gains from trade (2014) Downloads
Working Paper: Trade Adjustment Dynamics and the Welfare Gains from Trade (2014) Downloads
Working Paper: Trade Adjustment Dynamics and the Welfare Gains from Trade (2014) Downloads
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