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Aggregate Properties of Open Economy Models with Expanding Varieties

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  • Saroj Bhattarai
  • Konstantin Kucheryavyy

Abstract

We present a unified framework to study interconnections between business cycle and international trade models. This unified framework is built upon the standard competitive, representative-firm international real business cycle model and features production externalities in the intermediate and final goods sectors. Our main theoretical result is that this unified framework is equivalent in aggregate implications to dynamic international trade models featuring monopolistic competition, endogenous entry and exit, and heterogeneous firms. We show that a negative capital externality in the intermediate good sector is required to fit the data. This presents a puzzle for the literature because when viewed through the lens of our unified framework, we demonstrate that the standard assumptions used in dynamic trade models imply a positive capital externality.

Suggested Citation

  • Saroj Bhattarai & Konstantin Kucheryavyy, 2024. "Aggregate Properties of Open Economy Models with Expanding Varieties," Journal of the European Economic Association, European Economic Association, vol. 22(1), pages 263-309.
    • Handle: RePEc:oup:jeurec:v:22:y:2024:i:1:p:263-309.
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    File URL: http://hdl.handle.net/10.1093/jeea/jvad037
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    More about this item

    JEL classification:

    • F12 - International Economics - - Trade - - - Models of Trade with Imperfect Competition and Scale Economies; Fragmentation
    • F41 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - Open Economy Macroeconomics
    • F44 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - International Business Cycles
    • F32 - International Economics - - International Finance - - - Current Account Adjustment; Short-term Capital Movements

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