One of the most fruitful advances in modern economics has been the introduction of psychological realism into the model of "economic man." The World Development Report 2015 organizes the evidence about how humans actually think and make decisions into a coherent framework useful for designing...

The international development community has been grappling with the challenges of implementing development programs and, consequently, with the design of practical approaches to attaining program objectives. This paper contributes to the emerging discussion on addressing the implementation...

The consensus among scholars and policymakers that "institutions matter" for development has led inexorably to a conclusion that "history matters," since institutions clearly form and evolve over time. Unfortunately, however, the next logical step has not yet been taken, which is to recognize...

Protectionism and industrial regulation are two topics in which the interplay of politics and economics is so strong that one wonders why the intellectual merger between the two approaches in the New Political Economy has taken so long. After describing the emergence of the state in Western...

Changing population age structures are shaping the trajectories of development in many countries, bringing opportunities and challenges. While aging has been a matter of concern for upper-middle and high-income economies, rapid population growth is set to continue in the poorest countries over...

Demographic change can be a positive contributor to development at any stage of demographic transition. This paper revisits the literature on the determinants and economic impacts of demographic change, and presents a new global typology that classifies countries into four categories based on...

This paper presents evidence suggesting that the relationship between income and economic structure is shifting over time, with countries across the income distribution uniformly increasing the share of labor in service sectors and an increasingly less stark relationship between manufacturing...

This paper uses the night lights (satellite imagery from outer space) approach to estimate growth in and levels of subnational 2013 gross domestic product for 47 counties in Kenya and 30 districts in Rwanda. Estimating subnational gross domestic product is consequential for three reasons. First,...