COINTEGRATION AND DISTANCE BETWEEN INFORMATION SETS
协整与信息集之间的距离
This paper investigates Granger noncausality and the cointegrating relation between two time series in the Hilbert space framework. This framework allows us to analyze the relationship between cointegration and distance between two information sets. In particular, we prove that if two variables, X and Y , are cointegrated, then the distance between two information sets, concerning the differenced series Δ X and Δ Y , must be less than the standard deviation of Δ X .