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Macroeconomics of international price discrimination

  • Giancarlo Corsetti

    (University of Rome III, Yale University and CEPR)

  • Luca Dedola

    ()

    (Banca d'Italia)

This paper builds a baseline two-country model of real and monetary transmission in the presence of optimal international price discrimination by firms. Distributing traded goods to consumers requires nontradables, intensive in local labor. Because of distributive trade the price elasticity of demand depends on country-specific shocks to productivity and the exchange rate. Hence, within limits dictated by the possibility of arbitrage, profit-maximizing monopolistic firms drive a wedge between prices across countries at both wholesale and retail level. Optimal pricing thus results in possibly large deviations from the law of one price and incomplete pass-through on import prices. Consistent with the received wisdom on international transmission, nominal and real depreciations worsens the terms of trade. In general, the nominal and real exchange rate are more volatile than fundamentals, and large movements in the international prices translate into small changes in consumption, employment and the price level. Finally, we provide an example showing that international policy cooperation may be redundant even when asset trading is ruled out, despite incomplete pass-through and less than optimal risk sharing.

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Paper provided by Bank of Italy, Economic Research and International Relations Area in its series Temi di discussione (Economic working papers) with number 461.

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Date of creation: Dec 2002
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Handle: RePEc:bdi:wptemi:td_461_02
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