M ASAHIRO Y OSHIDA
Department of Political Science and Economics, Waseda University
Nishiwaseda 1-6-1, Shinjyuku-ku, Tokyo, 169-8050 JAPANhttp://www.m-yoshida.com+81 70 2798 3141
m.yoshida@waseda.jp
Last updated: July 26, 2024

E DUCATION

2020

Ph.D. in Economics (May 2020)
Department of Economics, Washington University in St. Louis
Thesis: Essays on Automation and Political Economy
Advisors: George-Levi Gayle (Chair), Alexander Monge-Naranjo

2016

M.A. in Economics, Washington University in St. Louis2014

M.A. in Economics, the University of Tokyo2010

B.A. in Economics, the University of TokyoE MPLOYMENTSep.2020-present Associate professor (tenure track; U.S. equivalent of Assistant Professor), Department of
Political Science and Economics, Waseda University2013

Research Assistant for Michal Fabinger, the University of Tokyo

2010-11

Business Analyst, Strategy Group, Management Consulting, Accenture, TokyoR ESEARCH I NTERESTS
Labor economics, Applied microeconomics(key words: immigration; automation; climate change; gender)
W ORKING PAPERS
Climate Change and Outdoor Labor Markets: the Rise of Dropouts of Adult Males
slides (2024 Jan)short paper[Abstract] Since 1970s, male labor force participation in developed economies has ubiquitously declined.
I argue that global warming fueled dropouts of prime-aged males, by harming the males’ traditional
advantage of working outdoors. Interacting regional prevalence of outdoor jobs and rich regional variations of climate change across U.S. commuting zones constructed from granular weather data during
1970-2019, I find that 10 more hot days (i.e., mean temperature of 75F and above) in a decadal baseline
on average generated 200,000 dropouts, with limited transition to an indoor sector. Climate change accounted for 5-10% of increased dropouts of prime-aged males during the period, with far smaller effects
on females, only accounting for 3-5% of outdoor workers. The effect is higher if a male is less-educated1younger; if hot days are non-rainy and humid; if his house has a residential air conditioner and/or TVset. I find climate change hurt compensating wage differentials of working outdoors, after controlling forsurvivors’ demographics. The finding suggests that climate change exacerbates regional socio-economicinequality.
Immigration, Robots and American Life
paper
[Abstract] Foreign labor represents a growing fraction of risky occupations that appear to be close substitutes of industrial robots. I investigate how dependency on immigrants interacted with robot adoption
shaped a workplace injury risk in high-hazard sectors. Associating a wave of unskilled immigrants andworkplace injuries across U.S. industries during 1992-2019, I find that immigrant workers substantiallyreplaced native fatalities by crowding out natives out of risky jobs. Associated with cross-industry investment of industrial robots, I also find that robot installation dramatically reduced injury risk, but theaggregate nationwide risk remains unabated from poor investments to riskier labor-intensive sectors (e.g.
agriculture and construction). Then, I test a hypothesis that immigration inflow impeded the automationand preserved an injury risk for remaining laborers, including natives. Over-dependency on foreign labor
may preserve the risky technology generating a social cost (e.g., disabilities; usage of opioids).
Immigration, Automation and the U.S. Cities: A Task-based Framework for Welfare Analysis(Job Market Paper)
Earlier theoretical worksUsing a Soft Deadline to Counter Monopoly (R&R at Journal of Industrial Economics)
Master’s Thesis in University of Tokyo, Advisor: Michihiro Kandori

Deadline Credibility, Protracted Trades and Market Efficiency (Under review)
Laboratory experiment Advisor in Missouri Social Science Experimental Laboratory (MISSEL): BrianRogers
W ORK IN P ROGRESS
Climate Change and the Demise of Marriage of the Millennials slides
Climate Change and Declining Labor Share with Xincheng Qiu (Arizona State)
Singularity, Seniority and Productivity: Evidence from Japanese Chess Grandmasterships: 1968-2022
with Hideo Owan (Waseda)

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C ONFERENCE AND S EMINARS

2024

Keio (applied micro); Sophia; Tokyo Labor Economics Workshop; Japanese Economic Association Spring Conference; Waseda (empirical micro); Trans Pacific Labor Seminars (U.C. Santa
Barbara, upcoming); Japanese Economic Association Fall Conference (upcoming)

2023

Waseda (applied micro); Kyoto (applied micro); Hitotsubashi (Trade and Urban); GRIPS (empirical micro); Kyoto (Urban)

2020

Waseda University; National University of Singapore (NUS) Business School; NUS Lee Kuan
Yew School of Public Policy; Rice University; Hong Kong University of Science and Technology, Business School

2019

Econometric Society European Winter Meeting, the Erasmus University, Rotterdam; Urban
Economic Association Conference, Federal Reserve Bank of Philadelphia, Philadelphia; Dissertation Competition, McDonnell Academy, Washington University, St. Louis2018

NBER Young Scholars Workshop on the Economics of Artificial Intelligence, the University ofToronto, Toronto

2018

Urban Economic Association Conference, Columbia University, New York2015

Midwest Economic Theory Conference, Ohio State University, Columbus

2014Japanese Economic Association Conference (poster), Kyoto

2013

Osaka (Applied Micro Workshop); Asian Leaders Forum Workshop

R ESEARCH G RANT

2024

Special project grant from Waseda Univ.

2023

Grants-in-Aid for Scientific Research (KAKENHI) from Japan Society for Promotion of Science

2023

Early career grant from Waseda Univ.

2022

Special project grant from Waseda Univ.

T EACHING E XPERIENCES

Sep. 2020-present Population Economics (Labor Economics) at undergraduate level (2020Fall, 2021-2023
Spring & Fall, 2024Spring)
Sep. 2020-present Population Economics (Labor Economics) at graduate level (2020Fall, 2021Fall, 2022Fall,2023Spring, 2024Spring)
Apr. 2022-present Causal inference for applied micro economics (2022Spring, 2023Fall, 2024Fall)
Apr. 2023-present Intermediate Seminar on causal inference (2023Spring, 2024Fall)
Sep. 2020-present Basic Seminar (for college freshmen; 2020Fall, 2021Fall, 2022Fall, 2023Fall, 2024Fall)
Sep. 2020-Jul. 2022 Academic Literacy Seminar (2020Fall, 2021Spring, 2022Spring)
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2018

Teaching Assistant for Health Economics (undergraduate), for Grace Johnson

2018

Teaching Assistant for Introductory Microeconomics (undergraduate), for Brian Rogers

2013

Teaching Assistant for International Trade (graduate, the University of Tokyo) for Michal Fabinger

2013

Teaching Assistant for Game Theory (graduate and undergraduate, the University of Tokyo) forAkihiko Matsui

B OOKS

2014“Methodology for Group Collaboration” (website link in Japanese), East Economics Press2023, Chinese, Shandong Friendship Publishing House

2010“Case Studies for Problem Solving” (website link in Japanese), East Economics Press, withAtsushige Kimoto
2016, Taiwanese, Sanren Press 2023, Chinese, Post Wave Publishing Consulting

2009“Introduction to the Fermi Estimation” (website link in Japanese), East Economics Press, withShunsuke Wakita
2011, Korean, Eiji Press 2016, Taiwanese, Sanren Press 2022, Chinese, Post Wave Publishing
Consulting

S CHOLARSHIP

Fall 2019

Dissertation year fellowship from Washington University

Sep. 2014-Aug. 2019 Scholarship from McDonnell International Scholars AcademyJul. 2014-Jun. 2019 Nakajima Memorial International Scholarship

R EFEREE S ERVICE

list:

Waseda Dissertation Competition; Azusa Ono Memorial Award

C OMMUNITY S ERVICE

Sep. 2020-present Co-organizer, Applied micro workshop at Waseda with Yuta Toyama, Hideo Owan, Haruko
NoguchiApr. 2021-present Co-organizer, Ph.D. workshop at Waseda
mentees:Ritsu Kitagawa (2021Spring), Yijie Tao (2021Fall), Aline Mortha (2022Spring), Yayue Xiao (2022Fall),Haonan Li, Pengsheng Zhao (2023Spring / Fall)

Dec. 2022 lecture, Nakajima Memorial International Scholarship
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2013

Co-organizer, Brown Bag Workshop, with Michal Fabinger, the University of Tokyo

R EFERENCE S ERVICE

Students: Yeonjoo Kim (2022), Mingtong Yang (2022), Taiki Makino (2023), Young Zhu (2024)

P ROGRAMMING S KILLSProficient: R, Amazon Web Service
Knowledge: Stata, Matlab, Julia, Python
L ANGUAGES
English (fluent), Japanese (native)
R EFERENCES

George-Levi Gayle (Primary advisor)
Department of Economics
Washington University in St. Louis
St. Louis, MO 63130
ggayle@wustl.edu

Alexander Monge-Naranjo
Research Division
Federal Reserve Bank of St. Louis
St. Louis, MO 63166
Alexander.MongeNaranjo@stls.frb.org

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