Sun, Yixiao; Phillips, Peter C.B.; Jin, Sainan - Cowles Foundation for Research in Economics, Yale University - 2010
Using the power kernels of Phillips, Sun and Jin (2006, 2007), we examine the large sample asymptotic properties of the t-test for different choices of power parameter (rho). We show that the nonstandard fixed-rho limit distributions of the t-statistic provide more accurate approximations to the...