Hi:
This is a job for suest.
regress a b if year==2005
est store five
regress a b if year==2000
est store zero
suest five zero
test [five_mean]a = [zero_mean]b
HTH,
John.
____________________________________________________
Prof. John Antonakis, Associate Dean
Faculty of Business and Economics
Department of Organizational Behavior
University of Lausanne
Internef #618
CH-1015 Lausanne-Dorigny
Switzerland
Tel ++41 (0)21 692-3438
Fax ++41 (0)21 692-3305
Faculty page:
http://www.hec.unil.ch/people/jantonakis
Personal page:
http://www.hec.unil.ch/jantonakis
____________________________________________________
On 16.01.2010 04:39, Sibel S. wrote:
If we run the following regressions,
regress a b if year==2005 *equation 1
regress a b if year==2000 *equation 2
how can one test the difference between the estimated coefficients (b
in equation 1 and b in equation 2) and get the t-statistic of
difference?Thanks.
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/