June 01, 1992
J. Bradford DeLong (1992), "Productivity and Machinery Investment: A Long Run Look 1870-1980," Journal of Economic History 53: 2 (June), 307-24.

J. Bradford DeLong (1992), "Productivity and Machinery Investment: A Long Run Look 1870-1980," Journal of Economic History 53: 2 (June), 307-24.

Posted by DeLong at June 01, 1992 02:01 PM | Trackback

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