2014年-世界发展银行全球_Comparative_Advantage_International_Trade_and_Fertility_55页_1mb

Summary of "Comparative Advantage, International Trade, and Fertility"

Core Content

This working paper investigates the relationship between comparative advantage in international trade and fertility outcomes across countries. It combines theoretical modeling with empirical analysis to show that countries with a comparative advantage in female labor-intensive industries tend to have lower fertility rates.

The paper is authored by Quy-Toan Do, Andrei Levchenko, and Claudio Raddatz, and was published by The World Bank in June 2014. It contributes to the understanding of fertility determinants and the impact of international trade integration on gender outcomes.

Main Viewpoints

1. Theoretical Framework:

   • The paper introduces a two-country, two-sector model where one sector is female-intensive and the other is male-intensive.
   • It assumes that female labor is more specific to female-intensive sectors, while male labor is more specific to male-intensive sectors, and capital is mobile.
   • The model incorporates Becker's hypothesis that fertility is influenced by the opportunity cost of time for women.

2. Key Prediction:

   • Countries with a comparative advantage in female-intensive goods have lower fertility.
   • This is due to higher female wages in these countries, which increase the opportunity cost of childbearing.

3. Empirical Analysis:

   • The study uses industry-level export data for 61 manufacturing sectors in 145 countries over five decades.
   • It defines female- and male-intensive sectors based on the share of female workers.
   • An instrumental variable approach is used to isolate the causal effect of comparative advantage on fertility, using geographical variables like distance and common borders.

4. Results:

   • Cross-sectional and panel analyses support the main prediction: higher female-labor intensity of exports is associated with lower fertility.
   • The effect is robust to the inclusion of other fertility determinants.
   • A 20% reduction in fertility is associated with moving from the 25th to 75th percentile of the female-labor intensity distribution.

Key Information

• Sample Size: 61 manufacturing sectors in 145 countries over five decades.
• Methodology:
  • Theoretical model: Based on the specific-factors model and Ricardian comparative advantage.
  • Empirical strategy: Uses geographical variables as an instrument to address reverse causality.
  • Estimation Techniques: Two-stage least squares (2SLS) and panel data analysis with country and time fixed effects.
• Findings:
  • Lower fertility is observed in countries with comparative advantage in female-intensive sectors.
  • The effect is not limited to natural resource exporters or the Middle East-North Africa region.
  • Female labor participation (FLFP) is increased by comparative advantage in female-intensive sectors, but only in low-income countries with lower female education and higher fertility.
• Contribution to Literature:
  • It is the first to combine Ricardian trade theory with gender-specific labor intensity.
  • It provides novel empirical evidence on Becker's opportunity cost hypothesis.
  • It also contributes to the literature on globalization and gender outcomes.

Structure of the Paper

• Section 1: Introduction and background.
• Section 2: Theoretical framework:
  • 2.1: The environment and assumptions.
  • 2.2: Production and trade equilibrium.
  • 2.3: Fertility decisions and labor market analysis.
• Section 3: Empirical strategy.
• Section 4: Data description.
• Section 5: Estimation results.
• Section 6: Conclusion.
• Appendix A: All proofs are collected here.

Conclusion

The paper demonstrates that comparative advantage in female-intensive industries leads to higher female wages, which in turn increases the opportunity cost of childbearing and reduces fertility. This finding is supported by empirical evidence and is robust to various controls. It also highlights the conditional relationship between comparative advantage and female labor participation, which is more pronounced in less developed economies. The paper contributes to both theoretical trade models and empirical fertility studies, offering a new perspective on the interplay between globalization and gender dynamics.