In New Keynesian models, Taylor rules move real rates in the same direction as the natural rate, but less than one-for-one. Permanent, positive technology shocks raise the natural rate—policy is expansionary and hours rise relative to the flexible price case.

Lotteries are introduced into Cavalcanti and Erosa (2008) [2], a version of Trejos and Wright (1995) [4] with aggregate shocks. Lotteries improve welfare and eliminate the two notable features of the optimum with deterministic trades: over-production and history-dependence. Moreover, the optimum...

This paper presents the first empirical evidence in the history of banking on the question of whether banks can create money out of nothing. The banking crisis has revived interest in this issue, but it had remained unsettled. Three hypotheses are recognised in the literature. According to the...

The financial crisis has triggered a new consensus among economists that it is necessary to include a banking sector in macroeconomic models. It is also necessary for the finance and banking literature to consider how best to incorporate systemic, macroeconomic feedbacks into its modelling of...

This paper studies the implication of unit root supply shocks for the Taylor rule. I find that, when supply shocks have a unit root, if a central bank wishes to guarantee the stationarity of inflation, then their interest rate reaction function should not respond to the output gap. Once the...

The effectiveness of alternative loss functions assigned to the common central bank of a monetary union is studied. The alternative policy objectives are a function of the degree of aggregation of decision variables. We consider, respectively, the policy based on the union-wide aggregates and...

This paper studies monetary policy in models where multiple assets have different liquidity properties: safe and "pseudo-safe" assets coexist. A shock worsening the liquidity properties of the pseudo-safe assets raises interest-rate spreads and can cause a deep recession cum deflation. Expanding...

This paper provides evidence for a low frequency relationship between unemployment, inflation and the nominal interest rate. I show that in the United States from 1959.1 to 1991.3, the unemployment rate, the inflation rate and the federal funds rate can be modelled as non stationary time series...

We define continuous-time dynamics for exchange economies with fiat money. Traders have locally rational expectations, face a cash-in-advance constraint, and continuously adjust their short-run dominant strategy in a monetary strategic market game involving a double-auction with limit-price...

Macroeconomic and microeconomic data paint conflicting pictures of price behaviour. Macroeconomic data suggest that inflation is inertial. Microeconomic data indicate that firms change prices frequently. We formulate and estimate a model that resolves this apparent micro/macro conflict. Our...