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A Peculiar Sample: A Reply to Steckel and Ziebarth
Published online by Cambridge University Press: 25 February 2016
Abstract
Richard Steckel and Nicolas Ziebarth (2016) find that biases in height by age imposed by traders versus non-traders were negligible. Importantly, their method of identifying traders differs from that of Jonathan Pritchett and Herman Freudenberger (1992). Using a sample of inward coastwise manifests for the port of New Orleans, we show that Steckel and Ziebarth made errors classifying shippers, that they underestimate the relative number of slaves shipped by traders, and that their empirical estimates of selection bias are attenuated towards zero.
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- Copyright © The Economic History Association 2016
Footnotes
The authors benefited from the helpful comments and suggestions of James Alm, Stanley Engerman, Timothy Guinnane, and Paul Rhode.
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