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The optimal tariff in the presence of trade-induced productivity gains
Hübler, Michael
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Pothen, Frank
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URL:
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https://ub-madoc.bib.uni-mannheim.de/35277
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URN:
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urn:nbn:de:bsz:180-madoc-352776
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Dokumenttyp:
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Arbeitspapier
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Erscheinungsjahr:
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2013
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Titel einer Zeitschrift oder einer Reihe:
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ZEW Discussion Papers
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Band/Volume:
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13-103
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Ort der Veröffentlichung:
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Mannheim
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Sprache der Veröffentlichung:
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Englisch
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Einrichtung:
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Sonstige Einrichtungen > ZEW - Leibniz-Zentrum für Europäische Wirtschaftsforschung
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MADOC-Schriftenreihe:
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Veröffentlichungen des ZEW (Leibniz-Zentrum für Europäische Wirtschaftsforschung) > ZEW Discussion Papers
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Fachgebiet:
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330 Wirtschaft
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Fachklassifikation:
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JEL:
F12 , F14 , F17 , O33 , O40,
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Freie Schlagwörter (Englisch):
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Trade , optimal tariff , productivity gains , technology spillovers
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Abstract:
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We scrutinize the impact of international productivity gains (spillovers) induced by
imports and exports on optimal tariffs. First, we solve a stylized 2x2 trade model of
a large open economy and show that (a) productivity gains via exports and imports
both reduce the strategically optimal tariff, (b) there exists a certain strength of productivity
gains such that the incentive to manipulate the terms of trade strategically
vanishes, (c) the welfare gain that can be achieved via a tariff is lower in the presence
of productivity gains than in their absence, and (d) these results even hold without
power on international markets. Second, we apply this model to a panel data set
covering 40 countries, 29 sectors and the years 1995 to 2009. We find that importdriven
productivity gains are stronger than export-driven productivity gains. Third,
we extend our 2x2 model to a multi-region, multi-sector model that we calibrate to
the data set used in the econometric analysis and to the econometrically estimated
productivity gains. Optimal tariffs are reduced by 17% for the US and China and
40% for Brazil when taking trade-induced productivity gains into account. The USA
are the only model region that gains from European optimal tariff policy. Thus,
trade-induced productivity gains have empirically relevant effects on optimal tariffs.
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