We study a business cycle model in which a benevolent …scal authority must determine the optimal provision of government services, while lacking credibility, lump-sum taxes, and the ability to bond fi…nance de…ficits. Households and the fi…scal authority have risk sensitive pref- erences. We...

In this paper we develop a simple dynamic New Keynesian type model using the multiplier – accelerator principle in our effort to determine the time paths of income, actual and expected inflation towards their long – run equilibrium values. Assuming that expectations are adaptive, we...

We study a business cycle model in which a benevolent fiscal authority must determine the optimal provision of government services, while lacking credibility, lump-sum taxes, and the ability to bond finance deficits. Households and the fiscal authority have risk sensitive preferences. We find...

We study the existence and uniqueness properties of monetary policy with limited commitment in LQ RE models. We use a New Keynesian model with debt accumulation in the spirit of Leeper (1991) as a `lab', because this model generates multiple equilibria under pure discretion, and under full...

With non-controllable auto-regressive shocks, the welfare of Ramsey optimal policy is the solution of a single Ricatti equation of a linear quadratic regulator. The existing theory by Hansen and Sargent (2007) refers to an additional Sylvester equation but miss another equation for computing the...

In the discrete-time new-Keynesian model with public debt, Ramsey optimal policy eliminates the indeterminacy of simple-rules multiple equilibria between the fiscal theory of the price level versus new-Keynesian versus an unpleasant equilibrium. If public debt volatility is taken into account...

This algorithm extends Ljungqvist and Sargent (2012) algorithm of Stackelberg dynamic game to the case of dynamic stochastic general equilibrium models including exogenous forcing variables. It is based Anderson, Hansen, McGrattan, Sargent (1996) discounted augmented linear quadratic regulator....

We study the stability properties and conditions for the onset of Shilnikov chaos in the UK New Keynesian macroeconomy, as well as the shifts in the equilibrium dynamics under various policy regimes. We find that Shilnikov chaos emerges for a restricted part of the free parameters space in the...

This study evaluates the effectiveness of the mechanisms of stabilization of shocks in heterogeneous monetary zone, with an application on the Franc Franc zone. The study assesses the advantages and disadvantages of budget cooperation strategies against non-cooperation. It shows that fiscal...