Suchergebnisse

In the presence of the zero lower bound, standard business cycle models with a Taylor-type monetary policy rule are prone to equilibrium multiplicity. A drop in confidence can drive the economy into a liquidity trap without any change in fundamentals. Using a prototypical sticky-price model, I show that Ricardian fiscal spending rules that prevent real marginal costs from declining in the face of a confidence shock insulate the economy from such expectations-driven liquidity traps.

I show that the zero nominal interest rate bound may render it desirable for society to appoint a fiscally activist policy-maker who cares less about the stabilisation of government spending relative to inflation and output gap stabilisation than the private sector does. I work with a simple New Keynesian model where the government has to decide each period afresh about the optimal level of public consumption and the one period nominal interest rate. A fiscally activist policy-maker uses government spending more aggressively to stabilise inflation and the output gap in a liquidity trap than an authority with preferences identical to those of society as a whole would do. The appointment of an activist policy-maker corrects for discretionary authorities' disregard of the expectations channel, thereby reducing the welfare costs associated with zero bound events.

Recent years have seen an increasing interest among international relations scholars in applications of pragmatist thought. Few works, however, have gone beyond discussing the epistemological and methodological implications of pragmatism. This article draws on a pragmatist understanding of human action to develop a novel explanation of norm change in contexts not amenable to more common analytical approaches. Specifically, concepts derived from pragmatism help explain how the creative recombination of practices by actors in response to changes in the material and social context of action can transform largely tacit notions of appropriate behavior. The article demonstrates the value of the approach by explaining the origin of a common contemporary security practice unknown prior to the Second World War and incompatible with the then-prevailing norms of sovereignty: the long-term, peacetime presence of one state's military on the territory of another equally sovereign state.

I characterize optimal monetary and fiscal policy in a stochastic New Keynesian model when nominal interest rates may occasionally hit the zero lower bound. The benevolent policymaker controls the short-term nominal interest rate and the level of government spending. Under discretionary policy, accounting for fiscal stabilization policy eliminates to a large extent the welfare losses associated with the presence of the zero bound. Under commitment, the gains associated with the use of the fiscal policy tool remain modest, even though fiscal stabilization policy is part of the optimal policy mix.

I characterize optimal monetary and fiscal policy in a stochastic New Keynesian model when nominal interest rates may occasionally hit the zero lower bound. The benevolent policymaker controls the short-term nominal interest rate and the level of government spending. Under discretionary policy, accounting for fiscal stabilization policy eliminates to a large extent the welfare losses associated with the presence of the zero bound. Under commitment, the gains associated with the use of the fiscal policy tool remain modest, even though fiscal stabilization policy is part of the optimal policy mix.