Westerlund, Joakim; Edgerton, David - Nationalekonomiska Institutionen, Ekonomihögskolan - 2006
This paper proposes Lagrange multiplier based tests for the null hypothesis of no cointegration. The tests are general enough to allow for heteroskedastic and serially correlated errors, deterministic trends, and a structural break of unknown timing in both the intercept and slope. The limiting...