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Inflation-targeting central banks have only imperfect knowledge about the effect of policy decisions on inflation. An important source of uncertainty is the relationship between inflation and unemployment. This paper studies the optimal monetary policy in the presence of uncertainty about the...
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We examine whether the robustifying nature of Taylor rule cross-checking under model uncertainty carries over to the case of parameter uncertainty. Adjusting monetary policy based on this kind of cross-checking can improve the outcome for the monetary authority. This, however, crucially depends...
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Mean-variance portfolio optimization is more popular than optimization procedures that employ downside risk measures … results hold even if the CVaR is used, because all downside risk measures are difficult to estimate. The popularity of … variance as a measure of risk appears therefore to be rationally justified. …
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