Adolescent Fertility and Political Representation as Structural Drivers of Global Gender Inequality
Abstract
Rachael Gakii Murithi*, Beiran Qian and Kun Tang
Background: Gender inequality remains a pervasive global challenge, impeding human development and economic growth. The Gender Inequality Index (GII) offers a composite measure to assess these disparities across health, empowerment, and labor market dimensions.
Objective: This cross-sectional study provides a comprehensive analysis of global gender inequality patterns across 118 countries, examining key drivers, correlations, and the interrelationships between different dimensions of disparity.
Methods: We employed descriptive statistics, correlation analysis, and linear regression on the most recent GII dataset (2025) from the World Bank. Data visualization techniques were used to identify patterns and trends across different development contexts.
Results: Our analysis reveals stark global disparities, with GII values ranging from 0.009 (Denmark) to 0.484 (Iran). Adolescent birth rate demonstrates the strongest positive correlation with GII (r = +0.84), while female labor force participation shows a strong negative correlation (r = -0.68). Regression analysis indicates that adolescent birth rates and female parliamentary representation collectively explain 75% of GII variance. A significant "leaky pipeline" phenomenon emerges, where minimal education gaps widen dramatically in labor market participation, particularly in high-development countries.
Conclusion: Gender inequality is most strongly driven by reproductive health disparities and political underrepresentation. Effective interventions must target the specific transition points where gender disparities amplify, particularly in converting educational attainment into economic and political empowerment.