(1962-1996): Econometrics, Midwest Economy
(1968-1979): Econometrics, Agricultural Economics- (1964-1966): International Trade, Development Economics
(1964-1971): Urban and Regional Economics
(1966-1993): Labor Economics
(1959-1986): Econometrics, Agricultural Economics
(1966-1977): Labor and Industrial Relations
(1962-1967): Econometrics, Environmental Economics
(1966-1967): Value, Capital, and Distributions; Growth and Development- (1967-1991): Low Volatility Theory of Stocks
(1963-1983): Resource Economics, Population
(1965-1989): International Economics
(1920-1940): Marketing
(1900-1933): Economic History, Money Market, Public Finance, Banking
(1934-1972): Economic History, Money & Banking, Public Finance
(1917-1925): Labor, Industrial Relations- (1925-1933): Economic History, International Trade
(1912-1942): Economic Theory
(1902-1933): Corporate Finance and Investments.
(1922-1965): Transportation