Juillard, Michel

Methods for Simulating Stochastic General Equilibrium Models - 2008.


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This paper presents the numerical methods commonly used today to solve dynamic stochastic general equilibrium (DSGE) models.We begin by introducing a canonical model of dynamic optimization, which is the crucial element in this approach.We then review value-function iteration, the projection method, the parameterized expectation approach (PEA), and the perturbation method. Linearization, a very popular method in the literature, is presented as a special case of the perturbation method.