TY - BOOK AU - Laughhunn, D. J. TI - On the predictive value of combining cross-section and time-series data in empirical demand studies U1 - 330.182 PY - 1969/// CY - Urbana, Illinois PB - Bureau of Economic & Business Research, University of Illinois KW - Econometrics KW - Prediction (theory) KW - Time series analysis ER -