Conway, Roger K.; Swamy, P. A. V. B.; Yanagida, John F.; … - In: Agricultural Economics Research (1984) 3
Causality tests developed by Sims and Granger are fatally flawed for several reasons First, when two variables, X and Y, are uncorrelated, X has no linear predictive value for Y, but X,and Y may be nonlinearly related unless they are statistically Independent, In which case X and Y are not...