open greene7_8.gdt
genr Gpop = G/Pop
logs Gpop Y Pg Pnc Puc
genr time
genr year = time + 1959
smpl 1960 1995
ols l_Gpop const l_Y l_Pg l_Pnc l_Puc year
smpl 1960 1973
ols l_Gpop const l_Y l_Pg l_Pnc l_Puc year
smpl 1974 1995
ols l_Gpop const l_Y l_Pg l_Pnc l_Puc year
