This article uses a new database to establish a key finding: high tariffs were associated with fast growth before World War II, while they have been associated with slow growth thereafter. The paper offers explanations for the sign switch by controlling for novel measures of the changing world...

Latin America had the highest tariffs in the world before 1914; Asia had the lowest. Heavily protected Latin America also boasted some of the most explosive <italic>belle époque</italic> growth, while open Asia registered some of the least. What brought the two regions to the opposite ends of the tariff policy...

Why do rich countries receive the lion's share of international investment flows? Although this "wealth bias" is strong today, it was even stronger during the first global capital market boom before 1913. Very little of British capital exports went to poor countries, whether colonies or not....

This paper uses a new database to establish a set of tariff facts that have not been well appreciated: tariff rates in Latin America were far higher than anywhere else in the century before the Great Depression; while lower than Latin America, tariffs were far higher in the European periphery...

The most basic economic theory suggests that rising incomes in developing countries will deter emigration from those countries, an idea that captivates policymakers in international aid and trade diplomacy. A lengthy literature and recent data suggest something quite different: that over the...

The welcome rise of replication tests in economics has not been accompanied by a single, clear definition of replication. A discrepant replication, in current usage of the term, can signal anything from an unremarkable disagreement over methods to scientific incompetence or misconduct. This...

It is easy to learn the average income of a resident of El Salvador or Albania. But there is no systematic source of information on the average income of a Salvadoran or Albanian. We estimate a new statistic: income per natural-the mean annual income of all people born in a given country,...

The migration of doctors and nurses from Africa to rich countries has raised fears of an African medical brain drain. But empirical research on the issue has been hampered by lack of data. How many doctors and nurses have left Africa? Which countries did they leave? Where have they settled? As...

Labor markets in developing countries are subject to a high degree of frictions. We report the results from a randomized evaluation of an adult education program (Project ABC) in Niger, in which students learned how to use simple mobile phones as part of a literacy and numeracy class. Overall,...