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Finite-Sample Properties of Percentile and Percentile-t Bootstrap Confidence Intervals for Impulse Responses
The Review of Economics and Statistics
Vol. 81, No. 4 (Nov., 1999), pp. 652-660
Published by: The MIT Press
Stable URL: http://www.jstor.org/stable/2646714
Page Count: 9
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A Monte Carlo analysis of the coverage accuracy and average length of alternative bootstrap confidence intervals for impulse-response estimators shows that the accuracy of equal-tailed and symmetric percentile-t intervals can be poor and erratic in small samples (both in models with large roots and in models without roots near the unit circle). In contrast, some percentile bootstrap intervals may be both shorter and more accurate. The accuracy of percentile-t intervals improves with sample size, but the sample size required for reliable inference can be very large. Moreover, for such large sample sizes, virtually all bootstrap intervals tend to have excellent coverage accuracy.
The Review of Economics and Statistics © 1999 The MIT Press