3 North, Douglass C., The Economic Growth of the United States, 1790–1860 (Englewood Cliffs, NJ, 1961), pp. 135–55.Google ScholarFor a staple theory of midwestern industrialization based on labor supply, see Earle, Carville and Hoffman, Ronald, “The Foundation of the Modern Economy: Agriculture and the Costs of labor in the United States and England, 1800–60,” American Historical Review, 85 (12 1980), pp. 1055–94.CrossRefGoogle ScholarNeither Roger Ransom nor Albert Niemi challenged the conventional explanation of midwestern industrialization in their debate about antebellum regional growth. Ransom argued that transportation improvements permitted the Midwest to specialize in agriculture and associated processing manufacturing, while Niemi stressed that transportation improvements stimulated the rise of industries which served local markets. Ransom, Roger L., “Interregional Canals and Economic Specialization in the Antebellum United States,” Explorations in Entrepreneurial History, 5 (Fall 1967–1968), pp. 12–35;Google ScholarRansom, Roger L., “A Closer Look at Canals and Western Manufacturing,” Explorations in Economic History, 8 (Summer 1971), pp. 501–8;CrossRefGoogle ScholarRansom, Roger L., “A Rebuttal,” Explorations in Economic History, 9 (Summer 1972), pp. 425–26;CrossRefGoogle ScholarNiemi, Albert W. Jr, “A Further Look at Interregional Canals and Economic Specialization: 1820–1840,” Explorations in Economic History, 7 (Summer 1970), pp. 499–520;CrossRefGoogle Scholarand Niemi, Albert W. Jr, “A Closer Look at Canals and Western Manufacturing in the Canal Era: A Reply,” Explorations in Economic History, 9 (Summer 1972), pp. 423–24.CrossRefGoogle Scholar