Kurozumi, Eiji; Arai, Yoichi - Graduate School of Economics, Hitotsubashi University - 2005
This paper examines a point optimal invariant (POI) test for the null hypothesis of cointegration. Our test is different from Jansson's (2005) test in that we consider location invariance in wider directions and that we assume an unknown variance-covariance matrix for the error term, while it is...