[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]
st: How to estimate the sum of two estimators
I would like to ask you how to estimate the sum of two estimators.
I have examined two equations (supply curve and demand curve) and used reg3 for a just simple (OLS) SEM model as follows
Q = a1 + a2 * P +... + u
P = b1 + b2 * Q + .... + b3 * X +b4 * X * dummy + v
Actually, I want to know the estimator value and t-value of "b3 + b4" ... I want to know how to estimate b3+b4 (the sum of two estimators).
How can I get this? Is there any commend for my question on STATA? Or is there any other methord for estimate the sum of two estimators?
Thank you in advance
* For searches and help try: