This paper examines the role of financial market imperfections for output reactions to nominal interest rate shocks. Empirical evidence shows a hump-shaped impulse response function of output and suggests that credit supply co-moves with output. A monetary business cycle model with staggered...

Should central banks respond to asset price bubbles? This paper explores this monetary policy question in a hypothetical economy subject to asset price bubbles. Despite the highly stylized structure of the model, the results reveal several practical monetary policy lessons. First, a monetary...

This paper examines equilibrium determination under different monetary policy regimes when the government might default on its debt. We apply a cash-in-advance model where the government does not have access to non-distortionary taxation and does not account for initial outstanding debt when it...

This paper presents a business cycle analysis of monetary policy shocks measured by disturbances to open market operations, i.e. the ratio of open market papers to non-borrowed reserves. We find empirical evidence for the usefulness of this policy measure, as it predicts significant declines in...

This paper examines financial regulation and distortionary taxes in a heterogeneous-agents economy with pecuniary externalities induced by a collateral constraint. Limiting the loan-to-value ratio benefits only few unconstrained borrowers and reduces ex-ante social welfare. A Pigouvianstyle...

We study optimal government spending in a business cycle model with frictional unemployment. The Ramsey optimal policy is contrasted with a reference policy which would be first best in a frictionless economy. Results are: the Ramsey policy i) implies a higher steady state ratio of government...

This paper questions unconventional fiscal policy effects when the monetary policy rate is at the zero lower bound. We provide evidence for the US that the spread between the policy rate and the US-LIBOR, which is more relevant for private sector transactions, increases with government...

This paper presents a business cycle model with financial intermediation encompassing the conventional New Keynesian model. Households' financial wealth comprises cash and interest bearing deposits. When deposits provide transaction services, real broad money, which is predetermined, affects...