Pesaran, M. Hashem; Yamagata, Takashi - Institute for the Study of Labor (IZA) - 2012
series. In the case of cross-sectionally correlated errors, using a threshold estimator of the average squares of pair …-wise error correlations a test is proposed and is shown to be valid even if N is much larger than T. Monte Carlo evidence show … that the proposed test works well in small samples. The test is then applied to all securities in the S&P 500 index with 60 …