This paper explains a currency crisis as an outcome of a switch in how monetarypolicy and fiscal policy are coordinated. The paper develops a model of an open economy in which monetary policy starts active, fiscal policy starts passive and, in a particular state of nature, monetary policy...

Time consistency problems can arise when environmental taxes are employedto encourage firms to take irreversible abatement decisions. Setting a high carbontax, for instance, would induce firms to invest in low-carbon technology,yet once investment has occurred the government can then reduce the...

We use a two-country model with a central bank maximizing union-wide welfareand two fiscal authorities minimizing comparable, but slightly differentcountry-wide losses. We analyze the rivalry between the three authorities inseven static games. Comparing a homogeneous with a heterogeneous...

The uniqueness of bounded local equilibria under interest rate rules is analyzed in a model with sticky information à la Mankiw and Reis (2002). The main results are tighter bounds on monetary policy than in sticky-price models, irrelevance ofthe degree of output-gap targeting for determinacy,...

Recent attempts to incorporate optimal fiscal policy into NewKeynesian models subject to nominal inertia, have tended to assume that policymakers are benevolent and have access to a commitment technology. A separateliterature, on the New Political Economy, has focused on real economies...

While consumption habits have been utilised as a means of generating a hump shapedoutput response to monetary policy shocks in sticky-price New Keynesian economies,there is relatively little analysis of the impact of habits (particularly, external habits) onoptimal policy. In this paper we...

In practice, central banks have been confronted with a trade-off between stabilising inflation and output when dealing with rising oil prices. This contrasts with the result in the standard New Keynesian model that ensuring complete price stability is the optimal thing to do, even when an oil...

This paper analyzes German and Spanish fiscal policy using simple policy rules. We choose Germany and Spain, as both are Member States in the European Monetary Union (EMU) and underwent considerable increases in public debt in the early 1990s. We focus on the question, how fiscal policy behaves...

The tug-o-war for supremacy between inflation targeting and monetary tar-geting is a classic yet timely topic in monetary economics. In this paper, werevisit this question within the context of a pure-exchange overlapping genera-tions model of money where spatial separation and random relocation...