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Cointegration and Long-Horizon Forecasting

Cointegration and Long-Horizon Forecasting PDF Author: Mr.Peter F. Christoffersen
Publisher: International Monetary Fund
ISBN: 1451848137
Category : Business & Economics
Languages : en
Pages : 31

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Book Description
Imposing cointegration on a forecasting system, if cointegration is present, is believed to improve long-horizon forecasts. Contrary to this belief, at long horizons nothing is lost by ignoring cointegration when the forecasts are evaluated using standard multivariate forecast accuracy measures. In fact, simple univariate Box-Jenkins forecasts are just as accurate. Our results highlight a potentially important deficiency of standard forecast accuracy measures—they fail to value the maintenance of cointegrating relationships among variables—and we suggest alternatives that explicitly do so.