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Journal Article More Scope for Qualitative Economics Get access W. M. Gorman W. M. Gorman Search for other works by this author on: Oxford Academic Google Scholar The Review of Economic Studies, Volume 31, Issue 1, January 1964, Pages 65–68, https://doi.org/10.2307/2295936 Published: 01 January 1964
W. M. Gorman (Wed,) studied this question.