Why do borders still matter for economic activity? The reunification of Germany in 1990 provides a unique natural experiment for examining the effect of political borders on trade both in the cross-section and over time. With the fall of the Berlin Wall and the rapid formation of a political and...

Language is a strong and robust determinant of international trade patterns: Countries sharing a common language trade significantly more with each other than countries using different languages, holding other factors constant. In this paper, we show that this trade-promoting effect of language...

In this paper I survey and reinterpret the extensive literature on Europe's Great Depression. I argue that Europe could not exploit her vast economic potential after 1918, because the war had not yet come to an end - indeed it did not end before 1945. Both, domestic and international...

When did Germany become economically integrated? Within the framework of a gravity model, based on a new data set of about 40,000 observations on trade flows within and across the borders of Germany over the period 1885-1933, I explore the geography of trade costs across Central Europe. There...

Airport noise is costly. Airport location is typically associated with lower property prices. Airport expansion often sparks protests by local residents. In this paper, I provide new evidence on the costs of airport-related noise (and other disamenities of airports) for individuals. In contrast...

Politicians travel extensively abroad, for various reasons. One purpose of external visits is to improve bilateral economic relations. In this paper, I examine the effect of state visits on international trade. I use a large data set covering the travel activities of the heads of state of...

Historically, dissolutions of currency unions are not unusual. I use an annual panel data set covering 245 country pairs that use a common currency (of which 128 are dissolved) from 1948 through 1997 to characterize currency union exits. I find that departures from a currency union tend to occur...

This paper describes the monetary policy response of countries during the inter-war period. How did central banks react to the Great Depression? How did countries balance the externals demands of the gold standard with domestic policy pressures? What was the optimal level of international policy...