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Felbermayr, Gabriel
Jung, Benjamin
Larch, Mario
Year of Publication: 
Series/Report no.: 
University of Tübingen Working Papers in Economics and Finance 53
Recent quantitative trade models treat import tariffs as pure cost shifters so that their effects are similar to iceberg trade costs. We introduce revenue-generating import tariffs, which act as demand shifters, into the framework of Arkolakis, Costinot and Rodriguez-Clare (2012), and generalize their gains from trade equation. Our formula permits easy quantification based on countries' observed degrees of openness, tariff revenues, and on the gravity elasticities of tariffs and icebergs. Export selection drives a wedge between these two elasticities and matters for welfare gains. However, in all model variants, an analysis based on iceberg costs necessarily underestimates the true gains from trade relative to autarky. Our quantitative exercise suggests that the bias can be numerically significant. For countries with relatively high tariffs, our formula predicts 30-60% larger gains from trade when iceberg trade costs and/or tariffs are liberalized as compared to a pure reduction of iceberg trade costs.
Gravity Equation
Monopolistic Competition
Heterogeneous Firms
Armington Model
International Trade
Trade Policy
Gains from Trade
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Working Paper

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