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Youjin Hahn

Yonsei University · 社会科学

研究室紹介

Professor Youjin Hahn's research lab specializes in development economics and education economics, with a strong focus on the long-term impacts of social policies on women's empowerment, particularly in low- and middle-income countries. The lab investigates how education interventions—such as school stipends, single-sex schooling, and peer grouping—shape educational outcomes, labor market participation, fertility, and gender equality. It also explores the effects of early-life environmental shocks, such as cold weather, on child health and development. The research combines rigorous empirical methods, including randomized experiments and event study designs, to inform evidence-based policy.

education policywomen's empowermentgender inequalitychild developmentlabor market outcomes

Research Overview

Papers
82
Total Citations
391
Papers (5y)
29
Primary Field
社会科学

Research Output Trend

Figures are computed from collected data and may differ slightly.

Publications per year (5y)
29total
2022
2023
2024
2025
2026
Citations per year (5y)
41total
20222023202420252026

Selected Papers

15
1
Article|105 citations·2017
Education, Marriage, and Fertility: Long-Term Evidence from a Female Stipend Program in Bangladesh
Youjin Hahn, Asad Islam, Kanti Ananta Nuzhat, Russell Smyth, Hee-Seung Yang
SJR Q1Economic Development and Cultural Change

In 1994, Bangladesh introduced the Female Secondary School Stipend Program that made secondary education free for rural girls. This paper examines the long-term effects of the stipend program on education, marriage, fertility, and labor market outcomes of women. We find that the stipend increased years of education for eligible girls by 14%–25%. These girls were more likely to get married later and have fewer children. They also had more autonomy in making decisions about household purchases, he

Safety ResearchSocial Sciences
2
Article|43 citations·2017
The effect of female education on marital matches and child health in Bangladesh
Youjin Hahn, Kanti Ananta Nuzhat, Hee-Seung Yang
SJR Q1Journal of Population Economics
Gender StudiesSocial Sciences
3
Article|26 citations·2013
The effect of Medicaid physician fees on take-up of public health insurance among children in poverty
Youjin Hahn
SJR Q1Journal of Health Economics
Economics and EconometricsEconomics, Econometrics and Finance
4
Article|22 citations·2020
Work Transitions, Gender, and Subjective Well-Being
Hye Yoon Chung, Youjin Hahn
SJR Q2Applied Research in Quality of Life
General Health ProfessionsHealth Professions
5
Article|19 citations·2018
The impact of opioid analgesic prescription uptake on the costs of recovery from injury: Evidence from compensable orthopaedic road trauma patients
Youjin Hahn, Gemma Tiernan, Janneke Berecki‐Gisolf
SJR Q1Accident Analysis & Prevention
Public Health, Environmental and Occupational HealthMedicine
6
Article|16 citations·2022
The motherhood effect on labour market outcomes: evidence from South Korea
Anna Kim, Youjin Hahn
SJR Q3Asian-Pacific Economic Literature

We examine mothers' relative labour market outcomes around the first childbirth in South Korea, a country with the highest gender pay gaps and the lowest fertility rate among the OECD countries. Using an event study approach, we find that while fathers remain unaffected, mothers' earnings drop sharply by 66.2 per cent over the long run, mostly driven by a reduction in labour force participation. For women who continue to work, motherhood lowers the probability of entering male‐dominated occupati

Gender StudiesSocial Sciences
7
Article|13 citations·2017
Do Friendship Networks Improve Female Education?
Youjin Hahn, Asad Islam, Eleonora Patacchini, Yves Zénou
SSRN Electronic JournalOA
EducationSocial Sciences
8
Article|12 citations·2018
The Effectiveness of Single‐Sex Schools through Out‐of‐School Activities: Evidence from South Korea
Youjin Hahn, Liang Choon Wang
SJR Q1Oxford Bulletin of Economics and Statistics

Abstract Students’ out‐of‐school activities and time use can play a crucial role in facilitating the effect of schools on students’ achievement. Using data from Seoul, South Korea, where students are randomly assigned into schools, we show that when single‐sex schools improve students’ test performance, their effect is positive on students’ time spent on study‐related out‐of‐school activities. Our results indicate that out‐of‐school activities explain roughly 21%–30% of the effect of single‐sex

EducationSocial Sciences
9
Article|11 citations·2017
Can testing improve student learning? An evaluation of the mathematics diagnostic testing project
Julian R. Betts, Youjin Hahn, Andrew C. Zau
SJR Q1Journal of Urban Economics
EducationSocial Sciences
10
Article|11 citations·2019
Friendship and Female Education: Evidence from a Field Experiment in Bangladeshi Primary Schools
Youjin Hahn, Asad Islam, Eleonora Patacchini, Yves Zénou
SJR Q1The Economic Journal

Abstract We randomly assigned 115 primary schools in Bangladesh to one of two settings: children studying in groups with friends and children studying in groups with peers. The groups consisted of four people with similar average cognitive abilities and household characteristics. While the achievement of male students was not affected by the group assignment, low-ability females with friends outperformed low-ability females working with peers by roughly 0.4 standard deviations of the test score

EducationSocial Sciences
11
Article|9 citations·2015
Network Structure and Education Outcomes: Evidence from a Field Experiment in Bangladesh
Youjin Hahn, Asad Islam, Eleonora Patacchini, Yves Zénou
SSRN Electronic JournalOA
EducationSocial Sciences
12
Preprint|9 citations·2018
Does greater school autonomy make a difference? Evidence from a randomized natural experiment in South Korea
Youjin Hahn, Liang Choon Wang, Hee-Seung Yang
SJR Q1Journal of Public EconomicsOA
EducationSocial Sciences
13
Article|8 citations·2023
Early life exposure to cold weather shocks and growth stunting: Evidence from Tanzania
Josephat J. Hongoli, Youjin Hahn
SJR Q1Health Economics

This study examines the effects of early life and in utero exposure to cold weather shocks on the incidence of growth stunting for children under age five in Tanzania. We find that an increase of 10 percentage points in the proportion of days with temperatures below 15 degrees Celsius (one standard deviation below the long-term average) is associated with an increase in the probability of stunting and severe stunting by 2.0 and 1.4 percentage points (equivalent to 5.5 and 9.7 percent of the mean

Nutrition and DieteticsNursing
14
Preprint|8 citations·2015
Education, Marriage and Fertility: Long-Term Evidence from a Female Stipend Program in Bangladesh
Youjin Hahn, Asad Islam, Khanti Nuzhat, Russell Smyth, Hee-Seung Yang
RePEc: Research Papers in Economics

In 1994, Bangladesh introduced the Female Secondary School Stipend Program, which made secondary education free for rural girls. This paper examines the long-term effects of the stipend program on education, marriage, fertility and labor market outcomes of women. We find that the stipend increased years of education for eligible girls by 14 to 25 percent. These girls were more likely to get married later and have fewer children. They also had more autonomy in making decisions about household pur

Safety ResearchSocial Sciences
15
Article|6 citations·2021
소셜 미디어 데이터를 활용한 라이프스타일 호텔 인식에 영향을 미치는 요인분석
한유진, 이현수
한국실내디자인학회 논문집

In an era of uncertainty in the tourism and hospitality industry, hotels should inevitably provide their unique value attached to their space. In this circumstance, global hospitality groups have been creating lifestyle brands in line with the latest trend. Even with the rapid growth of lifestyle brands, the concept of lifestyle hotels is still vague. Besides, lifestyle hotels, especially in South Korea, tend to be developed as multi-purpose complexes combined with retail. Therefore, lifestyle h

Research Areas

EducationSafety ResearchEconomics and EconometricsGeneral Health ProfessionsDemographyGender Studies

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