Professor Emeritus since 2013
Research Professor of Economics 2013-
Professor of Economics at Vanderbilt 1993-2013

Research Associate, National Bureau of Economic Research, Cambridge, Mass. since 1989

Some recent publications:

“On the Use of Geographic Information Systems in Economic History: The American Transportation Revolution Revisited,” Journal of Economic History, 73: 2 (June 2013), pp. 313-338. Copyright by Economic History Association doi: 10.1017/S0022050713000284.

(with Margo and Rhode), “‘Automation’ of Manufacturing in the Late Nineteenth Century: The Hand and Machine Labor Study,”Journal of Economic Perspectives, 33:2 (Spring 20019), 51-70.

(with Margo and Rhode), ”Mechanization Takes Command?’ Powered Machinery and Production Times in Late Nineteenth-Century American Manufacturing,” Journal of Economic History, 82:3 (September 2022), 663-89. doi: 10.1017/ S0022050722000146.

(with Margo and Rhode), “De-skilling: Evidence from Late Nineteenth Century American Manufacturing,” Explorations in Economic History, 91 (January 2024): https://doi.org/10.1016/j.eeh.2023.101554.  Winner of 2023/4 Neal Prize for best article in Explorations.

For additional details, see Curriculum Vitae