Human capital is a central determinant of economic well-being and social advancement in the modern world economy. The concept of human capital covers the knowledge, skills, nutrition, and health that people accumulate over their lives, enabling them to realize their potential as productive...

Improving the returns to labor for low-paid workers is a key policy challenge, especially in low-income countries (LICs) where earnings increases are the single most important source of poverty reduction and an important engine of shared prosperity. Yet, the understanding of individual earnings...