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Inequality Constraints and Euler Equation based Solution Methods


Type

Working Paper

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Authors

Rendahl, P. 

Abstract

Solving dynamic models with inequality constraints poses a challenging problem for two major reasons: dynamic programming techniques are reliable but often slow, while Euler equation based methods are fast but have problematic or unknown convergence properties. This paper attempts to bridge this gap. I show that a common iterative procedure on the Euler equation { usually referred to as time iteration { delivers a sequence of approximate policy functions that converges to the true solution under a wide range of circumstances. These circumstances extend to an arbitrarily large, but nite, set of endogenous and exogenous state-variables as well as a very broad spectrum of occasionally binding constraints.

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Keywords

Time iteration

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Publisher

Faculty of Economics

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