Are American and French Stock Markets Integrated?

Within a nonlinear framework, this article studies the market integration hypothesis between the French and American stock markets, on a short- and long-term basis. We use two nonlinear Error Correction Models (ECM): the Exponential Switching Transition ECM (ESTECM) and the nonlinear ECM-Rational Polynomial (NECM-RP). Our results provide strong evidence of integration between French and American stock markets. They show that the stock market integration process is non-linear and timevarying and that it has strengthened over time