Combining Predictive Densities Using Bayesian Filtering with Applications to US Economics Data
41 Pages Posted: 9 Jan 2011
Date Written: December 20, 2010
Abstract
Using a Bayesian framework this paper provides a multivariate combination approach to prediction based on a distributional state space representation of predictive densities from alternative models. In the proposed approach the model set can be incomplete. Several multivariate time-varying combination strategies are introduced. In particular, a weight dynamics driven by the past performance of the predictive densities is considered and the use of learning mechanisms. The approach is assessed using statistical and utility-based performance measures for evaluating density forecasts of US macroeconomic time series and of surveys of stock market prices.
Keywords: Density Forecast Combination, Survey Forecast, Bayesian Filtering, Sequential Monte Carlo
JEL Classification: C11, C15, C53, E37
Suggested Citation: Suggested Citation
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