"The Cliometrics literature on slave efficiency has generally focused on static questions. We take a decidedly more dynamic approach. Drawing on the records of 142 plantations with 509 crops years, we show that the average daily cotton picking rate increased about four-fold between 1801 and...

"This is the first paper to document the effect of health on the migration propensities of African Americans in the American past. Using both IPUMS and the Colored Troops Sample of the Civil War Union Army Data, I estimate the effects of literacy and health on the migration propensities of...

We re-characterize American slavery as inefficient, whereby emancipation generated substantial aggregate economic gains. Coercive labor markets were severely distorted, with the social marginal cost of labor substantially above its marginal benefit. Production during enslavement came at immense...

The traditional historical narrative claims that White women were rarely involved in market transactions for enslaved people in the antebellum United States. Using transaction records, notary statements, and runaway advertisements, we provide the first quantitative estimates of the extent of...

To engage with the large literature on the economic effects of slavery, we use antebellum census data to test for statistical differences at the 1860 free-slave border. We find evidence of lower population density, less intensive land use, and lower farm values on the slave side. Half of the...