Publication Date: January 1989
Revision Date: August 1989
This paper studies the properties of the von Neumann ratio for time series with inﬁnite variance. The asymptotic theory is developed using recent results on the weak convergence of partial sums of time series with inﬁnite variance to stable processes and of sample serial correlations to functions of stable variables. Our asymptotics cover the null of iid variates and general moving average (MA) alternatives. Regression residuals are also considered. In the static regression model the Durbin-Watson statistic has the same limit distribution as the von Neumann ratio under general conditions. However, the dynamic models, the results are more complex and more interesting. When the regressors have thicker tail probabilities than the errors we ﬁnd that the Durbin-Watson and von Neumann ration asymptotics are the same.
Durbin-Watson ratio, von Neumann ratio, serial correlation, dynamic models, time series, asymptotic theory
JEL Classification Codes: 211, 212
See CFP: 772