During the nineteenth century, the US manufacturing sector shifted away from the “hand labor” mode of production, characteristic of artisan shops, to the “machine labor” of the factory. This was the focus of an extremely detailed but extraordinarily complex study by the Commissioner of...

Of the readily computed proxies for the prevalence of gun ownership, one, the percentage of suicides committed with a gun, performs consistently better than the others in cross-section comparisons. It is readily computed for states and counties and has a high degree of validity when tested...

A person’s schooling years are a formative time for cognitive development, and also a period of intense social interaction and friendship formation. In this paper, we estimate the production of social capital during adolescence and its effect on wages. We develop a model where homophily and...

Between 1940 and 1980, the homeownership rate among metropolitan African-American households increased by 27 percentage points. Nearly three-quarters of this increase occurred in central cities. We show that rising black homeownership in central cities was facilitated by the movement of white...

The share of metropolitan residents living in central cities declined dramatically from 1950 to 2000. We argue that cities would have lost even further ground if not for demographic trends such as renewed immigration, delayed child bearing, and a decline in the share of households headed by...