In nineteenth century America, most employment, particularly that in agriculture, was highly seasonal. Thus the movement of labor from outdoor to indoor must have increased labor hours and days per year, thereby resulting in higher national income and greater economic growth. We provide the...

One of the great puzzles of Sub-Saharan African economic history is that wheeled transportation was barely used prior to the colonial period. Instead, head porterage was the main method of transportation. The consensus among historians is that this was a rational adaption to the underlying...