Ain't Behavin': Forecast Errors and Measurement Errors in Early GNP Estimates
早期 GNP 估计的预测误差、测量误差与良好性质检验
Revisions of the early GNP estimates may contain elements of measurement errors as well as forecast errors. These types of error behave differently but need to satisfy a common set of criteria for well-behavedness. This article tests these criteria for U.S. GNP revisions. The tests are similar to tests of rationality and are based on the generalized method of moments estimator. The flash, 15-day, and 45-day estimates are found to be ill behaved, but the 75-day estimate…