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  • Birth Control and Growth: The Role of Culture
    Birth Control and Growth: The Role of Culture

    This paper examines how culture influences the success of fertility-control policies. In the 1970s, many developing countries implemented birth-control measures grounded in the quality-quantity trade-off, yet their outcomes diverg..

    Minhyeon Jeong et al. Date 2025.08.24

    Economic growth, Industrial structure
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    Content
    Executive Summary

    1. Introduction

    2. The Model

    3. Theoretical Results

    4. Empirical Analysis

    5. Conclusion

    References
    Summary
    This paper examines how culture influences the success of fertility-control policies. In the 1970s, many developing countries implemented birth-control measures grounded in the quality-quantity trade-off, yet their outcomes diverged, e.g., Taiwan, Thailand, and South Korea achieved rapid fertility declines, while Pakistan, India, and Brazil did not. We propose that societal conformity—the degree to which individuals adhere to norms such as a government-endorsed ideal family size— determines how effectively policy incentives translate into behavior. Using a unified theoretical framework, we show that higher conformity amplifies the impact of birth-control policies on both reducing fertility and increasing investment in children’s education. Under empirically plausible conditions, this strengthened quality-quantity trade-off not only boosts short-run economic growth but also accelerates the shift from agriculture to manufacturing—measured by manufacturing’s employment share—even when manufacturing is more capital-intensive and benefits from human-capital-driven, labor-saving technologies. Finally, we validate these predictions with cross-country empirical evidence, underscoring the pivotal role of culture in shaping demographic change and economic development.
  • The Impact of EU Enlargement and Brexit on International Migration
    The impact of EU enlargement and Brexit on international migration

    In recent decades, European Union (EU) enlargement has substantially altered the continent’s economic and political landscape by lowering barriers to trade, labor mobility, and capital flows. Migration emerges as a central factor..

    Yoonjung Kim and Young Jun Lee Date 2025.06.27

    International immigration, Migration
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    Content
    Executive Summary

    1. Introduction

    2. Descriptive Facts

    3. Gravity Models of International Migration

    4. Empirical Analysis

    5. Robustness Checks

    6. Conclusion References
    Summary
    In recent decades, European Union (EU) enlargement has substantially altered the continent’s economic and political landscape by lowering barriers to trade, labor mobility, and capital flows. Migration emerges as a central factor in this transformation, especially following the accession of Central and Eastern European countries. This enlargement has intensified interest among policymakers and researchers in the factors driving intra-European migration and its economic and social implications.

    This study specifically investigates the interplay between EU enlargement, the Freedom of Movement (FOM) agreements, and Brexit on labor mobility. Although EU enlargement has generally been associated with deeper economic and political integration, its most profound impact may lie in facilitating international migration. By distinguishing between the timing and impact of EU membership and the Freedom of Movement (FOM) agreements—often introduced at different times— the analysis provides a nuanced view of their respective roles.

    Employing a gravity model framework with Poisson Pseudo-Maximum Likelihood (PPML) estimation and a heterogeneity-robust difference-in-differences (DiD) approach, this study examines bilateral migration flows across 224 origin-destination country pairs. The results reveal that EU membership significantly increases migration flows, particularly from newer to older member states, indicating a pronounced east-to-west asymmetry. This effect remains robust after accounting for FOM implementation, and further robustness checks confirm the consistency of the findings under different policy timelines and the inclusion of external mobility agreements.

    Additionally, the study explores the impact of Brexit on return migration, uncovering a substantial rise in flows from the UK to EU member countries—especially those that joined after 2000—following the 2016 referendum. These patterns highlight the heterogeneous and asymmetric effects of different EU migration policies and suggest that Brexit exerts a stronger influence on return migration than FOM.

    Consequently, the findings highlight the importance of policy-specific analysis in capturing the complexities of migration responses to institutional changes within the EU.
  • The Recent Rise of the Far Right and Voters’ Anti-Refugee Attitudes in Eur..
    The Recent Rise of the Far Right and Voters’ Anti-Refugee Attitudes in Europe

    This paper explores the connection between individuals’ barrier preference toward immigration and refugee policy and how they are linked to voting behavior. We use three different datasets to tackle these two questions. We utiliz..

    Yoonjung Kim et al. Date 2024.11.20

    Trade policy, Political economy
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    Content
    Executive Summary

    1. Introduction

    2. Background

    3. Data
    3-1. European Social Survey
    3-2. Dutch Parliamentary Election Panel Study
    3-3. French Electoral Study

    4. Econometric Specifications
    4-1. European Social Survey
    4-2. DPES and French Electoral Study

    5. Estimation Results
    5-1. Estimation Results Using ESS Data
    5-2. Estimation Results Using DPES
    5-3. Estimation Results Using French Electoral Study
    5-4. Variable Selection Using LASSO

    6. Conclusion

    References
    Summary
    This paper explores the connection between individuals’ barrier preference toward immigration and refugee policy and how they are linked to voting behavior. We use three different datasets to tackle these two questions. We utilize multi-country survey data with abundant information regarding voters’ subjective attitudes toward immigrants to study the determinants of far-right voting in Europe. Notably, even after controlling for education, income level, or current employment status, which represents the human capital endow-ment of natives, industry-level comparative advantage and disadvantage, and political scale from left to right, we still find that a preference for immigration barriers has strong explanatory power for far-right voting behavior. We find that educational attainment and income level are important in explaining vot-ers’ anti-immigration attitudes, as the Heckscher-Ohlin model predicts. On average, voters with higher education and higher income are relatively more open to immigration and aware of their role in the economy.

    In addition to the cross-country election studies that allow us to study the anti-immigration attitude, we also use election surveys conducted in the Neth-erlands and France to add more details on the role of individual immigration and refugee policy preference in the voting behavior. The election survey on the parliamentary election of the Netherlands provides a special identification approach that is not available in cross-country election surveys. The panel structure of the Dutch survey allows us to observe the voting history of re-spondents in 2012, 2017, 2019, and 2021 parliamentary elections. Using this information, this paper clarifies the characteristics of voters who newly join supporting right-wing populism. In other words, we study determinants of ‘switching’ voting behavior from non-populist parties to right-wing populist parties focusing on the refugee barrier preference. We explore whether atti-tudes towards refugees affect this switching behavior in the politics of the Netherlands. The election survey on French voters covers the most recent presidential election in France. We elaborate on how immigration policy pref-erences of French voters are related with the popularity of right-wing popu-list presidential candidates in France.

    Considering that non-economic factors contribute to explaining the far-right voting behavior, utilizing other non-economic variables such as individ-uals’ sentiments towards various entities (including the government, legal sys-tem, and the European Parliament), and subjective evaluation of their own health and happiness can also add explanatory power, as numerous previous findings imply. For systematic consideration of these abundant variables in the ESS data, we use LASSO for variable selection. For this exercise, we con-sider two approaches in selecting the optimal penalty term, namely cross-validation (CV) and Bayesian information criterion (BIC). It is worth high-lighting that almost all of the immigration barrier preference variables are se-lected when using both CV and BIC for variable selection criteria.
  • The Relationship between COVID-19 Entry Restrictions and Immigration
    The Relationship between COVID-19 Entry Restrictions and Immigration

       In this paper, we investigate the relationship between COVID-19 entry restrictions and dependence on immigrants. In response to the global COVID-19 pandemic, countries worldwide implemented international travel restri..

    Youngook Jang and Donghee Joe Date 2023.12.29

    International immigration, Public health
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    Content
    Executive Summary 

    1. Introduction 

    2. Theoretical Framework

    3. Data and Methods  

    4. Results  

    5. Policy Implications 

    6. Conclusion 

    References 
    Summary
       In this paper, we investigate the relationship between COVID-19 entry restrictions and dependence on immigrants. In response to the global COVID-19 pandemic, countries worldwide implemented international travel restrictions to reduce the entry of infected individuals. These measures included entry and exit bans, mandatory quarantine of travelers, and vaccination requirements, significantly altering global mobility patterns. Despite their proven effectiveness, entry restrictions also impose substantial economic costs, particularly evident in the form of reduced immigration and subsequent labor shortages in sectors reliant on immigrant labor. We introduce a theoretical framework to shed light on the factors influencing the determination of entry restrictions, encompassing both health and economic considerations. Empirical analyses reveal that countries heavily dependent on foreign labor are inclined to adopt less stringent border controls, balancing the economic costs associated with reduced immigrant workforce. Moreover, we argue that the strength of entry restrictions is determined by a government’s capacity to manage infection waves through means other than entry bans. Finally, we offer policy implications based on our research, on how to control the spread of infectious diseases while minimizing the costs imposed by reducing immigration and the cost imposed on the immigrants themselves.
  • Individualism and Political Stability
    Individualism and Political Stability

    This study analyzes the relationship between individualism as a cultural trait and political instability as a political characteristic. The intuition of the analysis is that cultural traits can determine political preferences of m..

    Minhyeon Jeong and Wongi Kim Date 2023.12.29

    Competition policy, Political economy
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    Content
    Executive Summary 

    1. Introduction 

    2. Empirical Findings on Individualism

    3. Theoretical Framework 

    4. Empirical Analysis

    5. Conclusion

    References 
    Summary
    This study analyzes the relationship between individualism as a cultural trait and political instability as a political characteristic. The intuition of the analysis is that cultural traits can determine political preferences of members of society. The study considers a specific political belief: “How much should the government protect individual property rights?” which extends to broader political beliefs such as profree market vs. pro-redistribution. According to numerous studies, individualistic cultures tend to support stronger protection of property rights than collectivist cultures. If the degree of protection of property rights is determined by the political choices of the members of society, it can be inferred that the political preferences that lead to strong protection of property rights reflect the individualistic cultures inherent in society members. That is, the political preferences of society members regarding the degree of property rights protection―or, in a broader sense, pro-free market versus pro-redistribution―are influenced by their cultural traits of individualism or collectivism.

    This study presents a politico-economic model that captures this intuition. The theoretical results are as follows. First, in societies where neither individualism nor collectivism dominates, political preferences for free-market or redistribution contrast more sharply than in societies where individualism or collectivism dominates. Second, this contrast in political preferences leads to political instability, such that societies where neither individualism nor collectivism dominates tend to be more politically unstable. This study provides empirical evidence supporting the theoretical results.

    This study identifies a relationship between cultural traits, political preferences and political instability, shedding light on the impact of culture on economic growth. In a nutshell, societies with highly heterogeneous cultural traits among their members are prone to polarization of political preferences, leading to political instability, which constrains economic growth in the long run.
  • Resilience of Faith: Post-Covid Religious Trends and the Effect of Ecclesiastica..
    Resilience of Faith: Post-Covid Religious Trends and the Effect of Ecclesiastical Policy in the United States

    This paper delves into the impact of the Covid-19 pandemic and related policies on religious attendance, with a particular focus on Catholic church attendance in the United States. The study utilizes smartphone location data from ..

    Angela Cools et al. Date 2023.12.29

    Economic outlook, Public health
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    Content
    Executive Summary 

    1. Introduction 

    2. Background: The US Catholic Church and Dispensations

    3. Data 

    4. Foot Traffic Trends

    5. Religious Policies and Church Attendance

    6. Robustness and Placebo Tests

    7. Conclusion

    References 

    Tables and Figures

    Appendix Tables and Figures

    Appendix B: Classifying Religious Organizations
    Summary
    This paper delves into the impact of the Covid-19 pandemic and related policies on religious attendance, with a particular focus on Catholic church attendance in the United States. The study utilizes smartphone location data from SafeGraph Inc. to track weekly religious attendance trends from 2019 through the end of 2022. This approach offers a comprehensive analysis of how attendance patterns evolved during the pandemic. Notably, the study leverages two distinctive features of the Catholic Church: its division into 175 U.S. territorial dioceses, each overseen by a bishop, and the requirement for members to attend Sunday Mass.

    The study reveals several significant findings. Firstly, it highlights the dramatic decline in religious service attendance following the outbreak of Covid-19. In comparison to 2019 attendance levels, Catholic church visits lagged behind restaurants and other religious institutions throughout 2020 and 2021. However, by 2022, both Catholic and non-Catholic religious attendance had rebounded, returning to approximately 90% of their 2019 levels by October 2022. 

    Secondly, the paper explores the impact of religious policies, focusing on the lifting of dispensations that temporarily exempted Catholics from the requirement to attend Sunday Mass during the pandemic. The study uncovers that dispensation lifting resulted in a 4 percentage point increase in weekend church attendance compared to the 2019 baseline. Notably, this boost was short-lived, lasting for only six weeks following the lifting of dispensations. It's worth mentioning that the effect of lifting dispensations was smaller in magnitude compared to the impact of church reopenings, which were associated with a 6 to 10 percentage point increase in attendance. 

    Thirdly, the study emphasizes the lack of a significant correlation between the lifting of dispensations and changes in visits to non-Catholic religious institutions or restaurants. This suggests that the impact of dispensation lifting on church attendance was independent of other reopening events.

    In the broader context, this paper contributes to the understanding of religious practice in the face of adverse events, such as natural disasters or economic crises. It distinguishes itself by using actual behavioral data, offering high-frequency insights  into the dynamics of religious practice, and benefiting from a large sample size. Additionally, the study sheds light on the impact of religious policies on individual behavior, particularly through the novel exogenous variation introduced by the lifting of dispensations in U.S. Catholic dioceses.

    Furthermore, this research aligns with the broader body of literature on the effects of social distancing measures on mobility patterns. It contributes valuable insights into mobility within religious institutions, contrasting it with mobility trends in restaurants and bars.

  • Industrial Policy, Rise of Skilled Labor, and Firm Growth in the Early Stage of ..
    Industrial Policy, Rise of Skilled Labor, and Firm Growth in the Early Stage of Economic Development

    This paper examines the role of education policy in raising specific human capital for industrialization during the period of economic miracle in Korea. As part of the Heavy and Chemical Industry (HCI) drive, the Korean gov-ernmen..

    Sunghun Cho et al. Date 2023.12.15

    Economic growth, Industrial policy
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    Content
    Summary
    This paper examines the role of education policy in raising specific human capital for industrialization during the period of economic miracle in Korea. As part of the Heavy and Chemical Industry (HCI) drive, the Korean gov-ernment built technical schools near industrial complexes, resulting in a prompt supply of skilled labor. With practical curricula and training, young and skilled workers were able to enter the new sector. We also document these two patterns by using the Technical School List and the Occupational Wage survey. This government-led education reform led to higher firm-level productivity and growth, which is one of the important aspects explaining the success of the industrial policy. 

    Motivated by historical evidence, we combine the administrative Mining and Manufacturing survey with the Technical School List to study the effec-tiveness of industry-oriented education reform. We incorporate an education layer into the targeted industries under the HCI drive by exploiting the varia-tion in technical school openings at the county level.

    Our results show that plants in treated regions tend to employ and invest more than those in control regions, but value-added and labor productivity are negatively correlated with our interaction terms. This implies that firms in HCI sectors experienced disproportionate growth and should pay higher on-the-job costs for workers while education reform may reduce the overall cost of hiring industry-specific labor. In contrast, non-HCI sector firms ex-hibit a positive correlation with value added and labor productivity. These firms might benefit from the education reform that improved overall quality of skilled workers. Lastly, the effect of education reform was concentrated before the end of the HCI drive period and did not persist after 1980.

    In the era of emerging industrial policy, our paper presents a new mecha-nism that encourages more workers to enter a new sector targeted by gov-ernment-led plans. Our results serve as a starting point for re-evaluating con-temporary industrial policy and underscore the need to consider this addi-tional layer in future policy design.

  • An Analysis on the Regional Integration of Northeast Asia by Developing NARCI (N..
    An Analysis on the Regional Integration of Northeast Asia by Developing NARCI (Northeast Asia Regional Cooperation Index)

    This paper aims to develop an index to analyze regional cooperation in Northeast Asia, which is Northeast Asia Regional Cooperation Index(NARCI). NARCI evaluates intra-regional cooperation and integration in four areas, which are ..

    Jiyoung Moon et al. Date 2023.10.27

    Economic growth, Industrial policy
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    Content
    Executive Summary

    Contributors

    1. Introduction
    2. Developing the Framework of Index and Criteria
    3. Calculation of Index
    3.1. Functional Cooperation
    3.2. Political-Security Cooperation
    3.3. Socio-cultural Cooperation
    3.4. Institutionalization
    References

    Appendix: Scoring Scheme for NARCI

    Summary
    This paper aims to develop an index to analyze regional cooperation in Northeast Asia, which is Northeast Asia Regional Cooperation Index(NARCI). NARCI evaluates intra-regional cooperation and integration in four areas, which are functional cooperation, politico-security cooperation, socio-cultural cooperation, and institutionalization, in order to identify the conflict and cooperation situation in the Northeast Asian region. The analysis of economic integration found that Northeast Asian regional cooperation is characterized by a high level of integration in goods trade and regional value chain cooperation, but a relatively low level of integration in intra-regional direct investment and energy supply chain cooperation. The analysis of the political and security cooperation shows that the intensification of U.S.-China competition and the factional confrontation between Korea, U.S., Japan, and North Korea, China, Russia have had a significant impact on regional cooperation in political and diplomatic security. The result shows that the level of integration is low, with all evaluation indicators being negative. The analysis of the socio-cultural integration shows a relatively low level of integration in civil society cooperation and intergovernmental exchanges, a relatively high level of integration in cultural and educational exchanges and study abroad, and a neutral level of integration in information technology cooperation, labor mobility, and the share of tourists in the region. Finally, the analysis of institutional integration shows a relatively high level of integration in the bilateral channels between governments and the institutionalization of regional cooperation in the socio-cultural field, and half of the countries had institutional integration in financial integration and regional cooperation in the economic field. The level of integration in the political and security field was low due to the existence of only multilateral meetings. The analysis of NARCI shows that the impact of geopolitical conflicts on the economy and socio-culture has been expanding in recent years. However, the low level of political and diplomatic cooperation in the region and related institutional deficiencies are considered to be insufficient to buffer these risks, and efforts are needed to address them.

  • The Effects of Robotization on Foreign Direct Investment
    The Effects of Robotization on Foreign Direct Investment

    This study aims to investigate the effects of robotization on foreign direct investment (FDI). We address this research question by providing a theoreti-cal prediction derived from a simple model and then empirically testing our p..

    Sungwoo Hong et al. Date 2023.08.03

    Industrial structure, Foreign direct investment
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    Content
    Executive Summary

    1. Introduction

    2. Robotization and FDI: Conceptual Frameworks

    3. Data and Econometrics
    3.1. Data
    3.2. Econometrics

    4. Empirical Results

    5. Discussion
    5.1. Regional Heterogeneities
    5.2. Origin of Regional Heterogeneity: Role of Manufacturing and Education

    6. Concluding Remarks
    References

    Appendix

    Summary
    This study aims to investigate the effects of robotization on foreign direct investment (FDI). We address this research question by providing a theoreti-cal prediction derived from a simple model and then empirically testing our prediction. Theoretically, we found that an exogenous rise in industrial robots depresses both the robot rental rate and the domestic cost of task execution. Thus, it is more profitable to perform more tasks at home, leading to a de-crease in FDI. Empirical results are summarized as follows. First, an increase in robotization in source countries negatively affects outward FDI. Second, this negative effect is not consistent across global regions.
  • Analyzing DPRK's Food Supply and Demand Condition with Food Culture
    Analyzing DPRK's Food Supply and Demand Condition with Food Culture

    Estimation of food supply and demand in North Korea follows the FAO/WFP calorie standard at least 1,640 kcal per person per day. This method is useful in that it can estimate the minimum amount of food shortage for survival, but h..

    Jangho Choi and Bum Hwan Kim Date 2022.12.30

    Economic security, North Korean economy North Korea
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    Content
    Executive Summary

    Contributors

    1. Introduction
    2. Method of study

    3. Data of study

    4. Results

    5. Conclusion

    References
    Summary
    Estimation of food supply and demand in North Korea follows the FAO/WFP calorie standard at least 1,640 kcal per person per day. This method is useful in that it can estimate the minimum amount of food shortage for survival, but has a limitation in that it does not accurately reflect real life in that it ignores the food culture of North Korean residents. In this study, the amount of food supply and demand in North Korea was estimated by considering the food culture. The amount of food shortage was calculated by the difference between food consumption and supply. For food consumption, South Korea’s food supply and demand tables (1970 and 1990) and North Korean population were used to consider food culture. The amount of food supply considered North Korean food production, imports, and exports. As a result of the estimation, first, when the food shortage in North Korea in 2014 was estimated by reflecting South Korea’s food supply table in 1970, 2,388.4 thousand tons were oversupplied, resulting in a food supply and demand rate of 1.26. Second, assuming that North Korea’s food culture changes similarly to that of South Korea in 1990 due to the spread of marketplaces or the unification of South and North Korea, total food consumption increased by 33.3%, and the food supply and demand rate fell from 1.26 to 0.95. The results of this study have two implications. First, it is possible that the cereals shortage estimated by FAO/WFP based on the minimum calorie required for survival was overestimated. Second, North Korea’s carbohydrate-oriented food aid does not take North Korea’s food culture into account, so it is necessary to increase support for fish, meat, fruits and vegetables.