Kenneth E. Boulding (1910–1993) British-American economist
Source: 1940s, The theory of the firm in the last ten Years, 1942, p. 793 cited in: Pedro Garcia Duarte (2010) " A Path through the Wilderness: Time Discounting in Growth Models http://public.econ.duke.edu/~staff/wrkshop_papers/2009-2010_Papers/PGDuarte_Path_Through_Wilderness.pdf"