Template-Type: ReDIF-Paper 1.0 Author-Name: Taylor, A.M.R. Author-Name-Last: Taylor Author-Name: van Dijk, D.J.C. Author-Name-Last: van Dijk Author-Name-First: Dick Author-Person: pva27 Title: Testing for Stochastic Unit Roots - Some Monte Carlo evidence Abstract: This paper considers the properties of the tests of the null hypothesis of a random walk against the alternative of a stochastic unit root when the data are generated by a process related to, but not exactly equal to, the processes under the null and alternative. The extensive Monte Carlo experiments demonstrate that the test statistics are particularly sensitive to non-stationary RCAR processes with mean root less than unity, random walk processes with structural change in the variance, processes with changing persistence and trend-stationary processes with a break in the trend. Creation-Date: 1999-05-26 Series: RePEc:ems:eureir Number: EI 9922-/A Keywords: monte carlo, random walk, stochastic unit root Handle: RePEc:ems:eureir:1592