NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH
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Kei-Mu Yi

Department of Economics
University of Houston
3623 Cullen Blvd.
Houston, TX 77204
Tel: 713/743-3331
Fax: 713/743-3798

E-Mail: EmailAddress: hidden: you can email any NBER-related person as first underscore last at nber dot org
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NBER Program Affiliations: IFM , ITI
NBER Affiliation: Research Associate
Institutional Affiliations: University of Houston and Federal Reserve Bank of Dallas

NBER Working Papers and Publications

February 2020Gains from Trade: Does Sectoral Heterogeneity Matter?
with Rahul Giri, Hakan Yilmazkuday: w26741
This paper assesses the quantitative importance of including sectoral heterogeneity in computing the gains from trade. Our framework draws from Caliendo and Parro (2015) and has sectoral heterogeneity along five dimensions, including the elasticity of trade to trade costs. We estimate the sectoral trade elasticity with the Simonovska and Waugh (2014) simulated method of moments estimator and micro price data. Our estimates range from 2.97 to 8.94. Our benchmark model is calibrated to 21 OECD countries and 20 sectors. We remove one or two sources of sectoral heterogeneity at a time, and compare the gains from trade to the benchmark model. We also compare an aggregate model with a single elasticity to the benchmark model. Our main result from these counterfactual exercises is that sectoral h...
August 2018Global Value Chains and Inequality with Endogenous Labor Supply
with Eunhee Lee: w24884
We assess the role of global value chains in transmitting global integration shocks to aggregate trade, as well as distributional outcomes. We develop a multi-country general equilibrium trade model that features multi-stage production, with different stages having different productivities and using factors (occupations) with different intensities. The model also features a Roy mechanism, in which heterogeneous workers endogenously choose their sector and occupation. Country- and worker-level comparative advantages interact. A reduction in trade costs leads to countries specializing in their comparative advantage sectors and production stages. This specialization changes labor demand, and also leads to more workers shifting to their comparative advantage sectors and occupations. We calibra...

Published: Eunhee Lee & Kei-Mu Yi, 2018. "Global value chains and inequality with endogenous labor supply," Journal of International Economics, vol 115, pages 223-241. citation courtesy of

October 2017Global Value Chains and Inequality with Endogenous Labor Supply
with Eunhee Lee
in Trade and Labor Markets, Gordon H. Hanson and Stephen J. Redding, organizers
December 2012The Great Trade Collapse
with Rudolfs Bems, Robert C. Johnson: w18632
We survey recent literature on the causes of the collapse in international trade during the 2008-2009 global recession. We argue that the evidence points to the collapse in aggregate expenditure, concentrated on trade-intensive durable goods, as the main driver of the trade collapse. Inventory adjustment likely amplified the impact of these expenditure changes on trade. In addition, shocks to credit supply constrained export supply further exacerbating the decline in trade. Most evidence suggests that changes in trade policy did not play a large role. We conclude that one benefit of the trade collapse is that it has stimulated research in neglected areas at the intersection of trade and macroeconomics.

Published: Rudolfs Bems & Robert C. Johnson & Kei-Mu Yi, 2013. "The Great Trade Collapse," Annual Review of Economics, Annual Reviews, vol. 5(1), pages 375-400, 05. citation courtesy of

 
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