Journal of Political Economy 1913 21(7), 577-592 open access

Journal of Political Economy 1912 20(6), 588-598 open access

Journal of Political Economy 1909 17(1), 1-18 open access

Journal of Political Economy 1903 11(3), 363-398 open access

Journal of Political Economy 1903 11(4), 540-567 open access

Journal of Political Economy 1901 9(4), 625-629 open access

Journal of Political Economy 1900 8(4), 550-553 open access

Journal of Political Economy 1900 8(3), 427-430 open access

Journal of Political Economy 1899 7(3), 417-418 open access

Journal of Political Economy 1899 7(4), 550-551 open access