This paper uses the spread of disease as a proxy to measure economic interactions. Based on a case study of the Black Death (1346-51) in the Mediterranean region and Europe, we find geographic, institutional, and cultural determinants of trade. To achieve this we create and empirically test a...

Until the late nineteenth century, the British alkali industry enjoyed a colossal export market in the United States. Yet, as several scholars have already noted, the highly protectionist Dingley Tariff of 1897 caused a precipitous and irreversible decline in the volume of British alkali exports...