Question
Consider the system w x + 3y z = 0 w + 4x y + z = 3 3w + 7x + y + z
Consider the system
w x + 3y z = 0
w + 4x y + z = 3
3w + 7x + y + z = 6.
a Calculate the rank of the augmented matrix.
b Find basic and free variables.
c Is there any successful decomposition into endogenous and exogenous variables? Why?
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Mostly Harmless Econometrics An Empiricist's Companion
Authors: Joshua Angrist
1st Edition
1400829828, 9781400829828
