(With Jeremy Atack and Robert Margo)
"Rising Wage Dispersion Across American Manufacturing Establishments, 1850-1880" (Vanderbilt Department of Economics Working Paper Series 00-W36: September 2000/NBER Working Paper 7932: October 2000)

(With Jeremy Atack and Robert Margo)
"Productivity in Manufacturing and the Length of the Working Day: Evidence from the 1880 Census of Manufactures" (Jerome Levy Working Paper Series/Vanderbilt Department of Economics Working Paper Series 00-W45: November 2000)