Takashi Negishi Takashi Negishi is a Japanese neo-Walrasian economist.Career Negishi graduated Faculty of Economics , University of Tokyo in 1956 and received a Ph.D. in Economics from University of Tokyo in 1963.Contributions Negishi's research has provided a wide range of extensions to orthodox general equilibrium modelling. These additions have typically involved imperfect competition , stability and unemployment .Controversy Negishi is most famous for Negishi welfare weights or Negishi social welfare function , a system of weighting welfare assessment used in the Kyoto Protocol and other macro-economic analyses. These are controversial insofar as they recognize and embed into economic analysis a varying and unequal price of life across different countries. Elizabeth A. Stanton specifically criticized this approach in Negishi Welfare Weights: The Mathematics of Global Inequality , 2011, arguing in an interview that: This is argued by Stanton and others to be both inequitable and inaccurate, as over time that "current distribution" would change, making the policy advice even more wrong than it was when it was decided. The response of Joshua K. Abbott and Eli P. Fenchel acknowledged that"Negishi weights are often criticized on ethical grounds. We show the Negishi SWF is ethically consistent with the Golden Rule , whereby the social planner weights others’ utilities at a point in time as he would weight his own future discounted utility . This result clarifies the implicit ethical assumptions embodied in many economic models . We also show that a specific link exists between Negishi weights and a generalization of the Ramsey discounting rule ." However, the assumptions are still those of the planner and not those whose welfare is planned for. An empirical observation that remains unexplained is why the income distribution observed in 1948 by George F. Kennan, when the US had 50% of world wealth with 6% of its population, remained so similar to the price of life ratio between developed and developing world as of Kyoto in 1990, at about 15 to 1 . However, this could not be blamed easily on Negishi.Festschrift Ikeo, A., & Kurz, H.-D.. A history of economic theory: Essays in honour of Takashi Negishi . London: Routledge.Selected publications Negishi, T.. Welfare economics and existence of an equilibrium for a competitive economy . Metroeconomica , June, 12, 92–97. Negishi, Takashi The Stability of a Competitive Economy: A Survey Article , Econometrica Vol. 30, No. 4, Oct., pp. 635–669 Negishi, Tekashi, Microeconomic Foundations of Keynesian Macroeconomics , Amsterdam: North-Holland
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