Journal Article Average Prices under the International Wheat Agreement Get access Joseph Lerner Joseph Lerner Washington, D. C. Search for other works by this author on: Oxford Academic Google Scholar The Quarterly Journal of Economics, Volume 67, Issue 2, May 1953, Pages 298–305, https://doi.org/10.2307/1885341 Published: 01 May 1953

Journal Article Income Expansion and Contraction: A Diagrammatic Representation Get access Joseph Lebner Joseph Lebner Harvard University Search for other works by this author on: Oxford Academic Google Scholar The Quarterly Journal of Economics, Volume 65, Issue 1, February 1951, Pages 138–141, https://doi.org/10.2307/1879506 Published: 01 February 1951

I. Introduction: constant proportions and fixed "plant" as restrictions compared to the optimum, 361. — II. The possibility that constant proportions will be a greater restriction than fixed "plant, " 362. — III. Three possible locations of constant proportions line, plant line and scale line, 365.