A new perspective is provided on a puzzle that has emerged from the empirical lit- erature suggesting that government-independent central banks provide a `free lunch': lower in°ation is apparently achieved at no cost in terms of greater output variance. We assess the various explanations...

The Harris-Todaro model of rural to urban migration is extended to include urban agglomeration effects, some urban real wage flexibility and a government budget constraint. Without employment subsidies, laissez-faire migration is excessive unless real wage flexibility and agglomeration effects...

This paper provides a first attempt to quantify and at the same time utilize estimated measures of uncertainty for the design of robust interest rate rules. We estimate several variants of a linearized form of a New Keynesian model using quarterly US data. Both our theoretical and numerical...

Treating spectrum of different bandwidths as essentially distinct inputs needed for possibly different types of services has formed the core of spectrum analysis in academic research so far. New technological advances, such as cognitive radio, now allow us to move away from this inflexibility...

We develop an endogenous growth model driven by externalities of both private capital and public infrastructure. The government levies distortionary taxation to finance a publicly provided consumption good and public infrastructure. Firms face adjustment costs. We first study the steady state,...

The question of why the unemployment rate takes a long time before it reverts back to its natural-rate following a negative exogenous shock has been the subject of unremitting interest in macroeconomics. This paper shows that the speed of adjustment to the steady-state unemployment and the...

We examine strategic procurement behaviour by governments and its effect on market structure in sectors, such as defence, where the government is the dominant consumer. In a world economy with trade between producers, and between producers and non-producers, we use a modified Dixit-Stiglitz...

Using a calibrated two-bloc endogenous growth model of the European economy, we assess the growth and welfare impact of East-West European migration of different skill compositions. The East has a lower total factor productivity and a lower endowment of skilled labour. Migration can induce two...

This paper combines models and ideas from radio-engineering literature and economics to address the need for regulation of spectrum allocation in a commons scenario. It discusses under what conditions a laissez-faire policy towards spectrum usage would engender the inefficiencies of a spectrum...

Macroeconomics research has changed profoundly since the Kydland-Prescott seminal paper. In order to address the Lucas Critique, modelling now is based on microfoundations treating agents as rational utility optimizers. Bayesian estimation has produced models which are more data consistent than...