Forecasts of Aggregate Income, Output, and the Price Level, Journal of Business, 52, 1-33. -- STECKLER, Herman O. (1968 …. -- KOOPMANS, Tjalling C. (1947), Measurement without Theory, Review of Economic Statistics, 29, 161-172. -- HENDRY, David F. and … Indicators: 'Measurement Without Theory' Thirty-Five Years Later, Review of Economics and Statistics, 64, 589-595. -- DIEBOLD …