We develop a new specification test for the IV estimators adopting a particular second order approximation of Bekker (1994). The new specification test compares the difference of the forward (conventional) 2SLS estimator of the coefficient of the right hand side endogenous variable with the...

We develop a new specification test for IV estimators adopting a particular second order approximation of Bekker. The new specification test compares the difference of the forward (conventional) 2SLS estimator of the coefficient of the right-hand side endogenous variable with the reverse 2SLS...

This paper proposes a speci.cation test of the mixed logit models, by generalizing Haus- man and McFadden.s (1984) test. We generalize the test even further by considering a model developed by Berry, Levinsohn and Pakes (1995).