Prediction Intervals for ARIMA Models

Ralph Snyder (), John Ord and Anne B Koehler

Journal of Business & Economic Statistics, 2001, vol. 19, issue 2, 217-25

Abstract: The problem of constructing prediction intervals for linear time series (ARIMA) models is examined. The aim is to find prediction intervals that incorporate an allowance for sampling error associated with parameter estimates. The effect of constraints on parameters arising from stationarity and invertibility conditions is also incorporated. Two new methods, based on varying degrees of first-order Taylor approximations, are proposed. These are compared in a simulation study to two existing methods, a heuristic approach and the "plug-in" method whereby parameter values are set equal to their maximum likelihood estimates. A comparison of the four methods is also made for quarterly retail sales for 10 Organization for Economic Cooperation and Development countries. The new approaches provide a systematic improvement over existing methods.

Date: 2001
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Working Paper: Prediction Intervals for Arima Models (1997)
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