Instructional dataset, accompanying Econometrics, Fumio Hayashi, Princeton University Press, (c) 2000 Datasets also accessible in ASCII from http://www.e.u-tokyo.ac.jp/~hayashi/datasets.htm Data from the Summers-Heston paper "The Penn World Table (Mark 5): An Expanded Set of International Comparisons, 1950-1988", Quarterly J. of Economics, 106, 327-368, 1991. Annual panel data, 1960-1985, for 125 countries and 8 variables (3125 observations). Internally documented.