Question: Consider the panel data regression model with AR(1): Yit = Po + Xit1 + B2Yit-1+a; + uit, where (Bo, B1, B2) are constant parameters, xit

Consider the panel data regression model with AR(1): Yit = Po + Xit1 + B2Yit-1+a; + uit, where (Bo, B1, B2) are constant parameters, xit is the regressor that is time-varying, a, is the unobserved effect, and uit is the idiosyncratic error term. Which one of the following statements is correct? O a. The regressor xit is strictly exogenous. O b. The lag term yit-1 is uncorrelated with Uit-1- O c. The regressor Xit is uncorrelated with the unobserved effect aj. d. When the number of time periods is large, FE is less biased than FD. O, e. All of the listed answers are correct

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