Which is NOT a requirement for IV?
A、
B、
C、is finite and nonsingular
D、is finite and of full rank
A、
B、
C、is finite and nonsingular
D、is finite and of full rank
A、Arrange for meals, accommodation, transportation of visits.
B、Arrange the itinerary of visits.
C、Guide and introduce the tourists to and around the tourist sites.
D、Solve all the problems of the tourists during the trip.
A、the supply curve slopes down.
B、the demand curve slopes up.
C、the demand curve is horizontal.
D、there is no optimal level of consumption for the consumer.
A、the OLS estimator is consistent
B、the 2SLS estimator is consistent
C、the OLS estimator is efficient
D、the feasible GLS estimator is consistent
Ifis an endogenous variable, usually which of the following can be an IV for?
A、itself
B、
C、
D、
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