Identification problems arise naturally in forward-looking models when agents observe more than economists. We illustrate the problem in several macro-finance models with Taylor rules. When the shock to the rule is observed by agents but not economists, identification of the rule's parameters...

This paper aims at contributing to the research agenda on the sources of price stickiness, showing that the adoption of nominal price rigidity may be an optimal firms' reaction to the consumers' behavior, even if firms have no adjustment costs. With regular broadly accepted assumptions on...

Existing search-theoretical model of money have in general abstracted from the existence and accumulation of other assets, in particular, capital. In this paper we present a model where the optimal portfolio allocation decision of agents is explicitly modeled. Trade frictions in a decentralized...

We examine optimal and other monetary policies in a linear-quadratic setup with relatively general forms of model uncertainty. The forms of uncertainty our framework encompasses include: simple i.i.d. model deviations; serially correlated model deviations; estimable regime-switching models; more...

We examine optimal policy in an open-economy model with uncertainty and learning, where monetary policy actions affect the economy through the real exchange rate channel. Our results show that the degree of caution or activism in optimal policy depends on whether central banks are in coordinated...

This paper exhibits and quantifies a new theoretical channel of the non-neutrality of inflation transiting through capital market imperfections. Unconstrained households change their financial position in front of a change in the inflation rate, whereas constrained households can not. Thus...