A local level model has a deterministic level when the signal-to-noise ratio q is zero. In this paper we investigate the properties of the maximum likelihood estimator of q, paying particular attention to the case where its true value is zero. These properties are shown to be crucially dependent...

This collaborative event was organised to coincide with International celebrations by the International Council of Societies of Industrial Design (ICSID). The panel discussion involved industrial designers from a variety of backgrounds including academics, theorists and practitioners. Each...

The aim of this paper is to construct theoretical models which help to shed light on the recent criticisms of volatile investment flows. We do not make any empirical attempt to establish the exisitence or gauge the importance of the adverse affects of flows in recent exchange rate crises....

A competitive business cycle model is developed in which internal increasing returns translate a white noise random shock into temporarily agglomerated economic activity. Te qualitative nature of the economy varies over the cycle due to changes in the underlying economic structure, giving rise...

We examine the effect of introducing price stickiness into a stochastic growth model subject to a cash in advance constraint. As has been previously documented the introduction of price rigidities provides a substantial source of monetary non-neutrality, leads to a strong positive correlation...

We examine the ability of six labour market models to account for the business cycle behaviour of UK labour markets when embedded in a stochastic growth model. WE assess the models in terms of : (i) their ability to mimic general business cycle correlations and volatility (ii) their success at...

We estimate a version of the Melitz and Ottaviano [Melitz, Marc J. and Ottaviano, Giannnarco I.P., 2008, Market size, trade, and productivity, Review of Economic Studies 75(l), pp. 295-316.] model of international trade with firm heterogeneity. The model is constructed to yield testable...

We look at fitting regression models using data from stratified cluster samples when the strata may depend in some way on the observed responses within clusters. One important subclass of examples is that of family studies in genetic epidemiology, where the probability of selecting a family into...