Abstract
This article surveys duality in producer theory, consumer theory and welfare economics. As opposed to the usual analysis through first-order conditions for optimization, the various dualities are derived here from convex duality theory, using Fenchel transforms and subdifferentials.
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Blume, L.E. (2018). Duality. In: The New Palgrave Dictionary of Economics. Palgrave Macmillan, London. https://doi.org/10.1057/978-1-349-95189-5_285
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DOI: https://doi.org/10.1057/978-1-349-95189-5_285
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Publisher Name: Palgrave Macmillan, London
Print ISBN: 978-1-349-95188-8
Online ISBN: 978-1-349-95189-5
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