learn.def UNITCOST CUMPROD Obs: 16 annual observations, 1955-1970 UNITCOST cost per unit in year t CUMPROD cumulative production up to but not including year t These data are from Ernst Berndt (1991) "The Practice of Econometrics: Classic and Contemporary," Addison-Wesley Variable | Obs Mean Std. Dev. Min Max -------------+-------------------------------------------------------- UNITCOST | 16 21.93174 3.082034 16.41631 25.49296 CUMPROD | 16 2172.375 754.0636 1127 3488