International Stock Market Integration: Evidence from Nonlinear Cointegration Analysis

This paper employs newly developed techniques of nonlinear cointegration analysis to study international stock market integration. The stock price indexes of Australia, Japan, New Zealand, the United Kingdom and the United States are used in both linear and nonlinear cointegration tests on bivariate and various multivariate models. Much more evidence of market integration emerges from nonlinear cointegration analysis than linear analysis. It appears, therefore, that many of the conclusions reached in prior work that used traditional methodologies need to be reconsidered.