A Peculiar Sample: A Reply to Steckel and Ziebarth

• 成果类型: Editorial Material
• 署名作者: Tulane University
• 刊物名称: JOURNAL OF ECONOMIC HISTORY
• ISSN/ISSBN: 0022-0507
• DOI: 10.1017/S0022050716000425
• 发表日期: 2016
• 页码: 139-162
• 关键词: interregional slave-trade; new-orleans market; selection

摘要

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.