During the nineteenth century the United States urbanized - the share of the population living in urban areas increased - and industrialized - the share of the labor force in manufacturing increased. Our survey of the literature and analyses of census data suggests that a key reason was the...

In nineteenth century America, blacksmiths were a fixture in every village, town and city, producing a diverse range of products from axes to wheels and services from repairs to horse-shoeing. In constructing his historical GNP accounts Robert Gallman opted to exclude these "jacks-of-all-trades"...