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The Use of Symmetry for Models with Variable-size Variables

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  • Takeshi Fukasawa

Abstract

This paper shows the universal representations of symmetric functions with multidimensional variable-size variables, which help assessing the justification of approximation methods aggregating the information of each variable by moments. It then discusses how the results give insights into economic applications, including two-step policy function estimation, moment-based Markov equilibrium, and aggregative games.

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  • Takeshi Fukasawa, 2023. "The Use of Symmetry for Models with Variable-size Variables," Papers 2311.08650, arXiv.org, revised Apr 2024.
    • Handle: RePEc:arx:papers:2311.08650
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    References listed on IDEAS

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