Abstract
We analyze infinite-horizon choice functions within the setting of a simple technology. Efficiency and time consistency are characterized by stationary consumption and inheritance functions, as well as a transversality condition. In addition, we consider the equity axioms Suppes–Sen, Pigou–Dalton, and resource monotonicity. We show that Suppes–Sen and Pigou–Dalton imply that the consumption and inheritance functions are monotone with respect to time—thus justifying sustainability—while resource monotonicity implies that the consumption and inheritance functions are monotone with respect to the resource. Examples illustrate the characterization results.
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An earlier version of the paper was presented at Seoul National University, Victoria University of Wellington, the University of Auckland, the 2005 polarization and conflict conference in Milan, the 2006 workshop on intergenerational resource allocation in Montréal and the University of New South Wales. Thanks are due to two anonymous referees of this journal for their incisive comments which greatly helped us to improve this paper. Financial support through grants from the Social Sciences and Humanities Research Council of Canada, the Fonds pour la Formation de Chercheurs et l’Aide à la Recherche of Québec, the Research Council of Norway, and a Grant-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology of Japan is gratefully acknowledged. Asheim thanks Université de Montréal and Cornell University for the hospitality of these institutions while working on this project.
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Asheim, G.B., Bossert, W., Sprumont, Y. et al. Infinite-horizon choice functions. Econ Theory 43, 1–21 (2010). https://doi.org/10.1007/s00199-008-0423-z
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DOI: https://doi.org/10.1007/s00199-008-0423-z