"Market Coupling'' is currently seen as the most advanced market design in the restructuring of the European electricity market. Market coupling, by construction, introduces what is generally referred to as an incomplete market: it leaves several constraints out of the market and hence avoids...

Recent empirical research by Mark Taylor and coauthors has found evidence of hybrid dynamics for real exchange rates. While there is a random walk near equilibrium, for real exchange rates some distance from equilibrium there is mean-reversion which increases with the degree of misalignment. An...

In theory, competitive electricity markets can provide incentives for efficient investment in generating capacity. We show that if consumers and investors are risk averse, investment is efficient only if investors in generating capacity can sign long-term contracts with consumers. Otherwise the...

Asset mis-pricing may reflect investor psychology, with excess volatility arising from switches of sentiment. For a floating exchange rate where fundamentals follow a random walk, we show that excess volatility can be generated by the repeated entry and exit of currency `bulls' and `bears' with...

The aim of this paper is to understand what a recession means for individual consumers, and to model in a life-cycle framework how individuals respond to recessions. Our focus is on the sharp increase in savings rates that have been observed in the current and recent recessions. We show...

Evidence from behavioural experiments suggests that intertemporal preferences reflect a hyperbolic discount function. This paper shows that in contrast to exponential discounting, the elasticity of intertemporal substitution for hyperbolic consumers depends on the persistence of the change in...

In this paper we review some fundamental issues that have been identified by macroeconomists in discussing the co-ordination of monetary and fiscal policy. As Sargent and Wallace (1981) graphically illustrated, the consolidated public sector present-value budget constraint means that monetary...

This paper provides a general framework for aggregating linear dynamic models by deriving the aggregate model as an optimal prediction of the aggregate variable of interest with respect to an aggregate information set generated by current and past values of available aggregate observations. The...

This paper examines the extent to which the conclusions of cross-country studies of private savings are robust to allowing for the possible heterogeneity of savings behaviour across countries and for the inclusion of dynamics. It reviews the econometric implications of neglected slope...

We develop a simple model for studying the impact of monetary and fiscal policies on aggregate demand, at the business cycle frequencies. We focus on two questions principally. First, what are the key properties of the joint optimal simple rules governing the conduct of the systematic components...