The data set is from Penn World Tables (PWT) 5.6. This data set provides only selected variables for years 1965 and 1990.
data( pwt56 )
This data frame contains the following variables (columns):
Nu
Order Number
Country
Country Name
year
1965 or 1990
Y
Real GDP chain, international prices of 1985
K
Capital stock, international prices of 1985
L
Number of workers, in thousands
The Penn World Table was developed by Robert Summers and Alan Heston (and others) to facilitate consistent national accounts comparisons across countries as well as over time. The data can be used to evaluate the efficiency of economies of various countries in years 1965 and 1990.
Heston, A. and Summers, R. (1991), The Penn World Table (Mark 5): An Expanded Set of International Comparisons, 1950-1988, The Quarterly Journal of Economics, 106, 327--368.