(With Jeremy Atack and William N. Parker)
"The Farm, the Farmer, and the Market" in Stanley Engerman and Robert Gallman (eds.) Cambridge Economic History of the United States, Vol. 2(Cambridge UP, 2000), 245-284

(With Jeremy Atack and William N. Parker)
"Northern Agriculture and the Westward Movement" in Stanley Engerman and Robert Gallman (eds.) Cambridge Economic History of the United States, Vol. 2 (Cambridge UP, 2000), 285-328

(With Jeremy Atack and Robert Margo)
"Part Year Operation in Nineteenth Century Manufacturing: Evidence from the 1870 and 1880 Censuses" Journal of Economic History, (September 2002, forthcoming William N. Parker)