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On the Optimality of Interest Rate SmoothingSergio T. RebeloNorthwestern University - Kellogg School of Management; Centre for Economic Policy Research (CEPR); University of Rochester - Department of Economics; National Bureau of Economic Research (NBER) Danyang XieHong Kong University of Science & Technology - Department of Economics February 1997 NBER Working Paper No. w5947 Abstract: This paper studies some continuous-time cash-in-advance models in which interest rate smoothing is optimal. We consider both deterministic and stochastic models. In the stochastic case we obtain two results of independent interest: (i) we study what is, to our knowledge, the only version of the neoclassical model under uncertainty that can be solved in closed form in continuous time; and (ii) we show how to characterize the competitive equilibrium of a stochastic continuous time model that cannot be computed by solving a planning problem. We also discuss the scope for monetary policy to improve welfare in an economy with a suboptimal real competitive equilibrium, focusing on the particular example of an economy with externalities.
Number of Pages in PDF File: 29 working papers seriesDate posted: July 20, 2000Suggested CitationContact Information
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