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2017 年度 実施状況報告書

External Economies and International Trade: A Quantitative Framework

研究課題

研究課題/領域番号 17K13721
研究機関東京大学

研究代表者

クチェリャヴィ コンスタンティン  東京大学, 大学院経済学研究科(経済学部), 特任講師 (30774153)

研究期間 (年度) 2017-04-01 – 2020-03-31
キーワードinternational trade / gravity models / economies of scale / business cycles
研究実績の概要

The objective of the research is (i) to develop a quantitative model of international trade which features multiple countries, multiple industries, and industry-level external economies of scale (Marshallian externalities); (ii) to use the model to analyze effects of trade policy on country-industry-level productivities and trade. Our main research achievements are as follows:
First, we finished the construction of the model and proved a number of important theoretical results. Namely, we showed that the model has a unique equilibrium in several important special cases and we showed that within our environment all countries gain from trade, which is an important contribution to the literature. Moreover, we showed that the workhorse models of international trade that are used for policy analyses (Krugman and Melitz models) are isomorphic to our model. Thus, our theoretical results for uniqueness are applied to these models.
Second, we used our model to quantify the effects of the presence external economies of scale on trade flows and welfare. Namely, we employed real-world data and showed that the presence of external economies of scale magnifies gains from tariff reductions for countries that specialize in industries with strong external economies of scale.

現在までの達成度 (区分)
現在までの達成度 (区分)

2: おおむね順調に進展している

理由

We submitted the current version of our draft to a peer-reviewed journal. Several professors in the US (including Gene Grossman of Princeton University and Jonathan Eaton of Penn State University) have already started teaching our paper in their PhD level-courses on International Trade. We started working on extensions of our results to a dynamic setting with capital accumulation. We have already released a version of our draft and we are scheduled to present it at at least four conferences: 18th Society for the Advancement of Economic Theory in Taiwan, 2018 Society for Economic Dynamics in Mexico, 2018 North American Summer Meeting in the US, and 71st European Meeting of the Econometric Society in Germany.

今後の研究の推進方策

During the second year of our project we plan to work more on the dynamic version of our paper. We will be presenting it and incorporating feedback that we receive at presentations. At this point we have the theoretical part of our dynamic model finished, and we plan to work on the empirical part: estimation of parameters of the model.

次年度使用額が生じた理由

In the previous year we were not traveling. The saved money from the previous year will be used for traveling and presenting our work in the coming year.

  • 研究成果

    (6件)

すべて 2018 その他

すべて 学会発表 (5件) (うち国際学会 2件、 招待講演 1件) 備考 (1件)

  • [学会発表] Unified Model of International Business Cycles and Trade2018

    • 著者名/発表者名
      Konstantin Kucheryavyy
    • 学会等名
      Copenhagen Business School, Denmark
    • 招待講演
  • [学会発表] Unified Model of International Business Cycles and Trade2018

    • 著者名/発表者名
      Konstantin Kucheryavyy
    • 学会等名
      18th Society for the Advancement of Economic Theory
  • [学会発表] Unified Model of International Business Cycles and Trade2018

    • 著者名/発表者名
      Konstantin Kucheryavyy
    • 学会等名
      2018 Society for Economic Dynamics
    • 国際学会
  • [学会発表] Unified Model of International Business Cycles and Trade2018

    • 著者名/発表者名
      Konstantin Kucheryavyy
    • 学会等名
      2018 North American Summer Meeting
  • [学会発表] Unified Model of International Business Cycles and Trade2018

    • 著者名/発表者名
      Konstantin Kucheryavyy
    • 学会等名
      71st European Meeting of the Econometric Society
    • 国際学会
  • [備考] Personal Web Page of Konstantin Kucheryavyy

    • URL

      https://sites.google.com/site/kskucheryavyy/research

URL: 

公開日: 2018-12-17  

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