Journal of Political Economy 1914 22(8), 736-755

Journal of Political Economy 1914 22(6), 536-549

Journal of Political Economy 1914 22(4), 384-388

Journal of Political Economy 1913 21(8), 752-761

Journal of Political Economy 1913 21(2), 136-142

Journal of Political Economy 1912 20(1), 93-95

Journal of Political Economy 1912 20(1), 92-93

Journal of Political Economy 1911 19(5), 411-415

Journal of Political Economy 1911 19(5), 429-430 open access