The historical context -- Two centuries of South American reflections on the development gap between the United States and Latin America / Tulio Halperin Donghi -- Looking at them: a Mexican perspective on the gap with the United States / Enrique Krauze -- Explaining Latin America's lagging...

"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...