We propose an identified structural GARCH model to disentangle the dynamics of financial market crises. We distinguish between the hypersensitivity of a domestic market in crisis to news from foreign non-crisis markets, and the contagion imported to a tranquil domestic market from foreign...

This paper is a comment on P.C.B. Phillips, “To criticise the critics: an objective Bayesian analysis of stochastic trends” [Phillips (1990)]. Departing from the likelihood of an univariate autoregressive model different routes that lead to a posterior odds analysis of the unit root...

Genetic algorithms have been used by economists to model the process by which a population of heterogeneous agents learn how to optimize a given objective. However, most general equilibrium models in use today presume that agents already know how to optimize. If agents face any uncertainty, it...

This paper sets out the theoretical foundations for continuous-time signal extraction in econometrics. Continuous-time modeling gives an effective strategy for treating stock and flow data, irregularly spaced data, and changing frequency of observation. We rigorously derive the optimal...

An explanation of how to use nonparametric techniques to search for and test possible cointegrating transformations of time series.