On balance, these models have lower MSPE than does a random walk model for long (8 and 12)
quarter horizon predictions over the late part of our forecasting sample (1999-2007). These differences,
however, are usually not significant at conventional levels. Predictions that span the entire two decades
(1987-2007) or the early part (1987-1998) of our forecast sample generally have higher MSPE than does
a no change forecast. (Different samples involve different currencies, because of the introduction of the
Euro in 1999.) The basic factor model, and the factor model supplemented by PPP fundamentals, do best.
We recognize that the good performance in the recent period may be ephemeral. But we are hopeful that
our approach will prove useful in other datasets
On balance, these models have lower MSPE than does a random walk model for long (8 and 12)quarter horizon predictions over the late part of our forecasting sample (1999-2007). These differences,however, are usually not significant at conventional levels. Predictions that span the entire two decades(1987-2007) or the early part (1987-1998) of our forecast sample generally have higher MSPE than doesa no change forecast. (Different samples involve different currencies, because of the introduction of theEuro in 1999.) The basic factor model, and the factor model supplemented by PPP fundamentals, do best.We recognize that the good performance in the recent period may be ephemeral. But we are hopeful thatour approach will prove useful in other datasets
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