NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Jeffrey Lin

Federal Reserve Bank of Philadelphia
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NBER Working Papers and Publications

August 2010Portage: Path Dependence and Increasing Returns in U.S. History
with Hoyt Bleakley: w16314
We examine portage sites in the U.S. South, Mid-Atlantic, and Midwest, including those on the fall line, a geomorphologic feature in the southeastern U.S. marking the final rapids on rivers before the ocean. Historically, waterborne transport of goods required portage around the falls at these points, while some falls provided water power during early industrialization. These factors attracted commerce and manufacturing. Although these original advantages have long since been made obsolete, we document the continuing--and even increasing--importance of these portage sites over time. We interpret this finding in a model with path dependence arising from local increasing returns to scale.

Published: \Portage and Path Dependence." Quarterly Journal of Economics , May 2012, pp 587-644, joint work with Je rey Lin.

 
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