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An Estimated Stochastic General Equilibrium Model with Partial Dollarization: A Bayesian Approach

  • Paul Castillo
  • Carlos Montoro
  • Vicente Tuesta


In this paper, we develop and estimate a dynamic stochastic, general-equilibrium New Keynesian model with partial dollarization. Bayesian techniques and Peruvian data are used to evaluate two forms of dollarization: currency substitution (CS) and price dollarization (PD). The empirical results are as follow: first, it is noted that the two forms of partial dollarization are important in explaining the significance of the Peruvian data. Second, models with both forms of dollarization dominate models without dollarization. Third, a counterfactual exercise shows that by eliminating both forms of partial dollarization, the response of both output and consumption to a monetary policy shock doubles, making the interest rate channel of monetary policy more effective. Fourth, based on the variance decomposition of the preferred model (with CS and PD), it is found that demand type shocks explain almost all the fluctuation in CPI inflation, the monetary shock being the most important (39%). Remarkably, foreign disturbances account for 34% of the output fluctuations. Copyright Springer Science+Business Media, LLC 2013

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Article provided by Springer in its journal Open Economies Review.

Volume (Year): 24 (2013)
Issue (Month): 2 (April)
Pages: 217-265

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Handle: RePEc:kap:openec:v:24:y:2013:i:2:p:217-265
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