In this paper we propose a contemporaneous threshold multivariate smooth transition autoregressive (C-MSTAR) model in which the regime weights depend on the ex ante probabilities that latent regime-specific variables exceed certain threshold values. The model is a multivariate generalization of...

This paper proposes a new procedure for detecting the presence of periodically collapsing rational bubbles via an analysis of the properties of the relevant observable time series. The procedure is based on random coefficient autoregressive models. An empirical application of the procedure to...

This paper considers Markov error-correction (MEC) models in which deviations from the long-run equilibrium are characterised by different rates of adjustment. To motivate our analysis and illustrate the various issues involved, our discussion is structured around the analysis of the long-run...

This paper proposes a contemporaneous smooth transition threshold autoregressive model (C-STAR) as a modification of the smooth transition threshold autoregressive model surveyed in Terauml;svirta (1998), in which the regime weights depend on the ex ante probability that a latent regime-specific...

Exponential smoothing can introduce spurious auto-correlation in detrended data. The extent of this depends on the length of lag, the value of the smoothing parameter and the nature of the input process. The most widely-used version of exponential smoothing is the Hodrick-Prescott low-frequency...

This paper reviews the recent theoretical literature on collapsing exchange rate regimes. Using a combination of technique, intuition, and real-world observation, we discuss the literature's main insights, point out some unresolved questions and offer suggestions for future research. The survey...

We develop and apply a method of testing for speculative bubbles. The method is designed to overcome two well-known problems in the identification of bubble phenomena--the problem of distinguishing any type of bubble from an expected future change in market fundamentals and the problem of...