Whether targeted foundational instruction yields broad, long-term human capital gains is central to education policy but largely untested. We provide causal evidence from Zambia's government-run foundational skills program in public primary schools. After two years, a randomized trial shows the...

Most impact assessments of agricultural training evaluate one-time interventions over short time horizons. However, farmers may initially show enthusiasm for a new technology but subsequently dis-adopt it after a trial period, while others may adopt practices gradually over time. This study...

Using 1980-2019 Danish matched employer-employee data, we unpack the rise in wage sorting - the correlation between worker and firm wage fixed effects (Abowd et al., 1999) - from 0.06 to 0.18. The rise is driven entirely by reallocation of employment from persistently low-sorting to persistently...

Research on teacher preparation programs (TPPs) continues to debate the extent to which program quality meaningfully shapes teacher effectiveness. While early evidence from highincome contexts documented nontrivial differences across programs, more recent studies suggest that most variation in...

This study investigates how skilled labor influences the development of the secondary sector in emerging economies, using China as a case study. We focus on the transitional process in which manufacturing growth shifts from labor-intensive expansion toward productivity-driven industrial...

Expected goals (xG) are widely used to evaluate football performance. However, it is unclear whether players who consistently outperform their xG do so because of skill or because of luck. To our knowledge, this paper provides the first meta-analytic estimate of between-player heterogeneity in...