Code: Select all
*
* Baltagi, "Econometric Analysis of Panel Data", 4th ed.
* Example 4.2.7, pp 69-72
*
open data grunfeld.xls
calendar(panelobs=20,a) 1935
all 10//1954:01
data(format=xls,org=columns) 1//1935:01 10//1954:01 firm year invest value cap
*
linreg invest
# constant value cap
@bppaneltests(effects=both) %resids