Multiple Choice
cov (uit, uis | Xit, Xis = 0 for t ? s means that
A) there is no perfect multicollinearity in the errors.
B) division of errors by regressors in different time periods is always zero.
C) there is no correlation over time in the residuals.
D) conditional on the regressors, the errors are uncorrelated over time.
Correct Answer:

Verified
Correct Answer:
Verified
Q40: The main advantage of using panel data
Q41: Panel data is also called<br>A)longitudinal data.<br>B)cross-sectional data.<br>C)time
Q42: Your textbook reports the following result
Q43: You first encountered growth regression in your
Q44: A study attempts to investigate the role
Q45: Your textbook modifies the four assumptions for
Q46: Consider the special panel case where T
Q47: In panel data, the regression error<br>A)is likely
Q48: Two authors published a study in
Q49: You want to find the determinants of