Why are there three Constant Terms in Time Series FMOLS Estimation Results?

[Recep Taskin]

Why do ı have three constant term in results table. Can anyone help with that?


qui cointreg y1 x1 x2 x3 x4, est(fmols) eqtrend(0) eqdet(sdummymac1)
qui est store sfmolsmacs1
qui cointreg y1 x1 x2 x3 x4,, est(fmols) eqtrend(1) eqdet(tdummymac1)
qui est store tfmolsmacs1
estimates table sfmolsmacs1 tfmolsmacs1, b(%6.3f) se(%6.3f) p stats(N r2 r2_a rmse lrse) style(oneline)

Variable	sfmol~1	tfmol~1
------------	--------	------------
x1	0.008	-0.014
	0.006	0.005
	0.1598	0.003
x2	-0.043	-0.3
	0.037	0.036
	0.2413	0
x3	-0.002	0.001
	0.001	0.001
	0.004	0.076
x4	-0.009	-0.009
	0.003	0.002
	0.0045	0.0001
_cons	3.843
	0.549
	0
linear		0.191
		0.04
		0
_cons		4.585
		0.397
		0
_cons	-0.304	-0.009
	0.042	0.001
	0	0
------------	--------	------------
N	107	107
r2	0.197	0.414
r2_a	0.158	0.378
rmse	0.167	0.127
lrse	0.11	0.076

[Recep Taskin]

In this parameterization p1 represents the intercept before the shift, and p2 represents the change in the intercept at the time of the shift. We can also introduce a time trend into the level shift model. (Gregory-Hansen pq. 103 model 3)

I got it one intercept is before break time, the other one is change in the intercept.