Contact author: David E. Giles, Dept. of Economics, University of Victoria, P.O. Box 1700, STN CSC, Victoria, B.C., Canada V8W 2Y2; e-mail: [email protected]; Phone: (250) 721-8540; FAX: (250) 721-6214 Abstract Testing for multivariate cointegration when the data exhibit structural breaks is a problem that is encountered frequently in empirical economic analysis. The standard tests must be modifie...