An econometric analysis of biproportional properties in an input-output system

Various methods, such as biproportional adjustment and econometric estimating have been used to generate time series for input-output tables. In this paper, temporal changes of input-output coefficients are examined in order to analyze their behavior. Within the Chicago Region Econometric Input-Output Model, a set of input-output relationships has been extracted analytically for the period 1980-1997. Using the empirical evidence for Chicago, this paper conducts econometric time series analysis to determine whether or not certain coefficients or sets of coefficients exhibit tendencies toward stability or predictable change or whether others require more extensive econometric estimation.