Multiple Choice
The TSLS estimator is
A) (X'X) -1 X'Y
B) (X'Z(Z'Z) -1 Z'X) -1 X'Z(Z'Z) -1 Z' Y
C) (XΩ-1X) -1(XΩ-1Y)
D) (X'Pz) -1PzY
Correct Answer:

Verified
Correct Answer:
Verified
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