Fragility and conflict pose a critical threat to the global goal of ending extreme poverty. Between 1990 and 2015, successful development strategies reduced the proportion of the world’s people living in extreme poverty from 36 to 10 percent. But in many fragile and conflict-affected...

The study described in this policy brief quantified the impacts of water shocks (too much, too little and too dirty) on economic outcomes in Colombia, using combined hydrological and econometric modeling, and offers recommendations for putting the country on the path to water security (see...

This paper assesses the impact of Ethiopia's flagship social protection program, the Productive Safety Net Program on the adverse impacts of the COVID-19 pandemic on the food and nutrition security of households, mothers, and children. The analysis uses pre-pandemic, in-person household survey...

This study collects data on the sophistication of technologies used at the business function level for a representative sample of firms in Vietnam, Senegal, and the Brazilian state of Ceara. The analysis finds a large variance in technology sophistication across the business functions of a firm....

Many governments in developing countries have pursued policies targeting specific geographic areas over the past several decades. However, only a few have rigorously evaluated the causal impact of these interventions. This paper examines the effectiveness of a prominent place-based policy in...

A macro-micro simulation framework that links a computable general equilibrium model with the survey-based global income distribution dynamics model can be used to assess the economic and distributional effects of macroeconomic shocks and policies. The methodology is used to assess the economic...

This paper studies the effect of maternal depression on early childhood cognition in Peru. The identification strategy exploits variation in exposure to exogenous shocks during early life to instrument for maternal depression. The results suggest that maternal depression is detrimental to the...

This paper analyzes the reopening process of countries in Europe and Central Asia after the first wave of the COVID-19 pandemic and provides evidence on the effects of different reopening trajectories and their timing and speed on economic recovery. The analysis indicates that countries that...

The paper formalizes and tests the hypothesis that greater exposure to big shocks induces stronger societal responses for adaptation and protection from future big shocks. Support for this hypothesis is found in various strands of the literature and in new empirical tests using cross-country...

This study conducted an experiment in Mali to test whether patients pressure doctors to prescribe medical treatment they do not necessarily need. The experiment varied patients' information about a discount for antimalarial tablets and measured demand for both tablets and costlier antimalarial...