grunfeld.def i t inv v k obs: 40 i = identifier for firms, listed below = 1 General Electric = 2 Westinghouse t = identifier for year, t=1 is 1935; t=20 is 1954 inv = gross investment in plant and equipment, millions of $1947 v = value of common and preferred stock, millions of $1947 k = stock of capital, millions of $1947 This data set is a subset of grunfeld11.dat Source: Kleiber and Zeileis (2010) "The Grunfeld Data at 50" German Economic Review We thank the authors for providing the data Variable | Obs Mean Std. Dev. Min Max -------------+-------------------------------------------------------- inv | 40 72.59075 47.24981 12.93 189.6 v | 40 1306.117 722.0574 191.5 2803.3 k | 40 242.9 240.527 .8 888.9 firm | 40 1.5 .5063697 1 2 year | 40 1944.5 5.83974 1935 1954