We investigate the extent to which conflicts between Native American tribes and U.S. Army troops were caused by poor economic conditions in Europe from 1869 to 1890. We hypothesize that contractions in economic activity pushed many Europeans to move to the western United States in search of...

This paper provides a novel perspective on the Great Migration out of the U.S. South. Using a shift-share identification strategy, we show how millions of Southern white migrants transformed the cultural and political landscape across America. Counties with a larger Southern white share by 1940...

The presence of a westward-moving frontier of settlement shaped early U.S. history. In 1893, the historian Frederick Jackson Turner famously argued that the American frontier fostered individualism. We investigate the Frontier Thesis and identify its long-run implications for culture and...