Huntley Schaller, "A Re-examination of the Q Theory of Investment Using U.S. Firm Data", Journal of Applied Econometrics, Vol. 5, No. 4, 1990, pp. 309-325. List of Variables ----------------- CUSIP Compustat's identifying number ISIC SIC industry classification YEAR IKB I/K - broad definition of capital and investment IKN I/K - narrow definition QB q - broad definition QN q - narrow definition KI Capital stock IKSB (I/K)IC - broad definition IKSN (I/K)IC - narrow definition X1 1-phi X2B qIC - broad definition X2N qIC - narrow definition LYB S as defined in equation (10) - broad definition LYN S as defined in equation (10) - narrow definition There are three files. Each file has 6768 lines, corresponding to the number of observations. File 1, wyhowski, contains CUSIP ISIC YEAR IKB IKN QB QN KI File 2, wyhowsk2, contains IKSB IKSN X1 X2B X2N LYB File 3, wyhowsk3, contains LYN All three are zipped in schaller.zip.