This paper shows how a developing country, Lao PDR, imports high glutinous rice prices by exporting its staple food to neighboring countries, Vietnam and Thailand. Lao PDR has extensive export controls on rice, generating a sizable difference between domestic and international prices. Controls...

Traditional weighted-average measures of trade distortions are widely used in analyzing global and regional reforms, despite well-known deficiencies. This paper develops and applies optimal aggregators for the real-world case of multiple countries and commodities with much more detailed...

There is substantial evidence that with the progressive global decline in tariffs over several decades, trade costs are a more significant barrier to trade than tariffs, especially in Sub-Saharan Africa. This paper decomposes trade costs into three categories: costs that can be lowered by trade...

This paper, based on the introductory remarks made at the two-day conference on "The State of the Economy, the State of the World," is an idiosyncratic stocktaking of the trajectory of economics from Adam Smith to contemporary times, with special attention to the rise of development economics....

This paper provides an overview of the impact that one-time changes in commodity and other prices have on household welfare. It begins with a collection of stylized facts related to commodities based on household survey data from Latin America and Africa. The data uncovers strong commodity...

What is the welfare effect of a price change? This simple question is one of the most relevant and controversial questions in microeconomic theory and its different answers can lead to severe heterogeneity in empirical results. This paper returns to this question with the objective of providing...

A data set of key macro-sustainability indicators, constructed after several fact-finding missions, and World Bank methodologies on estimating wealth accounting are used to study Mauritania's wealth, which is estimated to be between USD50 and USD60 billion. The country's produced wealth...

This paper provides an overview of the impact of once-and-for-all changes in commodity prices and other prices on household welfare. It begins with a collection of stylized facts related to commodities based on household survey data from Latin America and Africa. The data uncover strong...

We analyze general equilibrium relationships between trade policy and the household distribution of income, decomposing social welfare into real income level and variance components and emphasizing Gini and Atkinson indexes. We embed these inequality adjusted social welfare functions in a...

Little is known about the situation facing widows and their dependent children in West Africa especially after the widow remarries. Women in Malian society are vulnerable to the loss of husbands especially in rural areas. Households headed by widows have significantly lower living standards on...