A stochastic two-country neoclassical rational expectations model with sticky prices -- optimally set by monopolistically competitive firms -- and possible excess capacity is developed to examine international spillover effects on output of monetary disturbances. The Mundell-Fleming model...

The paper discusses what we have learned from last year's currency crises in ERM and the Nordic countries about fixed exchange rates as a means to achieve price stability. After discussing the explanations for the crises, the paper concludes that fixed exchange rates are not a shortcut to price...

We examine optimal and other monetary policies in a linear-quadratic setup with a relatively general form of model uncertainty, so-called Markov jump-linear-quadratic systems extended to include forward-looking variables. The form of model uncertainty our framework encompasses includes : simple...

We study the problem of a policymaker who seeks to set policy optimally in an economy where the true economic structure is unobserved, and policymakers optimally learn from their observations of the economy. This is a classic problem of learning and control, variants of which have been studied...