Abstract:
In this paper we provide a comprehensive Bayesian posterior analysis of trend determination in general autoregressive models. Multiple lag autoregressive models with fitted drifts and time trends as well as models that allow for certain types of structural change in the deterministic components are considered. We utilize a modified information matrix-based prior that accommodates stochastic nonstationarity, takes into account the interactions between long-run and short-run dynamics and controls the degree of stochastic nonstationarity permitted. We derive analytic posterior densities for all of the trend determining parameters via the Laplace approximation to multivariate integrals. We also address the sampling properties of our posteriors under alternative data generating processes by simulation methods. We apply our Bayesian techniques to the Nelson-Plosser macroeconomic data and various stock price and dividend data.
Ordering information: This working paper can be ordered from Cowles Foundation, Yale University, Box 208281, New Haven, CT 06520-8281 USA The price is None.
More papers in Cowles Foundation Discussion Papers from Cowles Foundation, Yale University Address: Yale University, Box 208281, New Haven, CT 06520-8281 USA Contact information at EDIRC. Series data maintained by Glena Ames ().
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