New improved tests for cointegration with structural breaks

Research output: Contribution to journalArticle


This article 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 distributions of the test statistics are derived, and are found to be invariant not only with respect to the trend and structural break, but also with respect to the regressors. A small Monte Carlo study is also conducted to investigate the small-sample properties of the tests. The results reveal that the tests have small size distortions and good power relative to other tests.


Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Economics


  • structural break, cointegration test, Lagrange multiplier principle, deterministic trend
Original languageEnglish
Pages (from-to)188-224
JournalJournal of Time Series Analysis
Issue number2
Publication statusPublished - 2007
Publication categoryResearch