capt log close
log using 771ps6,replace

* 6-4

clear
use http://fmwww.bc.edu/ec-p/data/wooldridge/vote1.dta

regress voteA prtystrA democA lexpendA lexpendB

bpagan lexpendA lexpendB expendA expendB

whitetst

whitetst, fitted

* 6-6


clear
use http://fmwww.bc.edu/ec-p/data/greene2003/tableF5-1.dta

tsset

regress D.infl unemp
bgodfrey, lags(1)
prais D.infl unemp, corc
prais D.infl unemp

log close