Hello,
It seems to me that in this model there is no constant since the variables are centered.
Sincerely,
A.
Gretl computes an intercept in the fixed-effects model in the same way as Stata. See http://www.stata.com/support/faqs/statistics/intercept-in-fixed-effects-model/ and for a little script example to illustrate the method see http://lists.wfu.edu/pipermail/gretl-devel/2013-May/004459.html
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Gretl computes an intercept in the fixed-effects model in the same way
as Stata. See
http://www.stata.com/support/faqs/statistics/intercept-in-fixed-effects-model/
and for a little script example to illustrate the method see
http://lists.wfu.edu/pipermail/gretl-devel/2013-May/004459.html