Tile drainage was first demonstrated in the United States in 1835 as a method to adapt agriculture to excessive water in soils. Subsequently, innovations in coordinated drainage enterprises, engineering, and tile manufacture led to drainage over large portions of the U.S. Midwest and Southeast....

Property rights are the most fundamental institution in any society. They determine who has decision-making authority over assets and who bears the costs and benefits of those decisions. They assign ownership, wealth, political influence, and social standing. They make markets possible; define...

We study the political effects of mass emigration to the United States in the 19th century using data from Sweden. To instrument for total emigration over several decades, we exploit severe local frost shocks that sparked an initial wave of emigration, interacted with within-country travel...