Pain-Cost and Opportunity-Cost Get access David I. Green David I. Green Johns Hopkins University Search for other works by this author on: Oxford Academic Google Scholar The Quarterly Journal of Economics, Volume 8, Issue 2, January 1894, Pages 218–229, https://doi.org/10.2307/1883711 Published: 01 January 1894

Journal Article The Cause of Interest Get access David I. Green David I. Green Johns Hopkins University, Baltimore, MD Search for other works by this author on: Oxford Academic Google Scholar The Quarterly Journal of Economics, Volume 5, Issue 3, April 1891, Pages 361–365, https://doi.org/10.2307/1879617 Published: 01 April 1891