讲座预告 | 李瑶：Bilateral Economies of Scope

    李瑶现任香港科技大学工商管理学院经济系副教授（终身教职），并担任香港科技大学经济发展中心副主任、大欧亚研究中心副主任及新兴市场研究院研究员。她的主要研究领域为国际贸易、国际金融和经济发展。研究成果现已发表于经济学领域多个国际顶级期刊，包括Review of Economics and Statistics, American Economic Journal: Macroeconomics, Journal of International Economics, Journal of Development Economics, Journal of International Money and Finance, Journal of Comparative Economics 以及European Economic Review等。于2018年起成为“中国国际贸易研究会”副主席之一。并于2020年起担任粤港澳高校质量联盟联合秘书长。

  International transactions are costly because they require investments in logistics, contracts, and the acquisition of local institutional knowledge. We posit that a portion of the fixed costs of entering a specific export market can be used toward costs of acquiring imports from that same market, and vice versa. Using dis-aggregated transactions data for Chinese firms from 2000 to 2015, we document firm-level trading patterns that suggest such market-specific bilateral economies of scope. Using a structural model, we estimate that the simultaneous export and import in a given country reduces export and import fixed costs by over 41 and 37 percent, respectively.（authors: Yao Amber Li, Sichuang Xu, Stephen R. Yeaple and Tengyu Zhao）