Do countries with lower policy-induced barriers to international trade grow faster, once other relevant country characteristics are controlled for? There exists a large empirical literature providing an affirmative answer to this question. We argue that methodological problems with the empirical...

This paper presents a framework to understand and measure the effects of political borders on economic growth and per capita income levels. We present a model providing a theoretical foundation to estimate empirically the effects of political borders on growth. In our model, political...

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