Câu hỏi: If a regression equation contains an irrelevant variable, the parameter estimates will be

333 Lượt xem
30/08/2021
3.5 10 Đánh giá

A. Consistent and unbiased but inefficient

B. Consistent and asymptotically efficient but biased

C. Inconsistent

D. Consistent, unbiased and efficient

Đăng Nhập để xem đáp án
Câu hỏi khác cùng đề thi
Câu 1:  Which one of the following best describes most series of asset prices?

A. An independently and identically distributed (iid, i.e. “completely random”) process

B. A random walk with drift

C. An explosive process

D. A deterministic trend process

Xem đáp án

30/08/2021 9 Lượt xem

Câu 2: Which of the following would probably NOT be a potential “cure” for non-normal residuals?

A. Transforming two explanatory variables into a ratio

B. Removing large positive residuals

C. Using a procedure for estimation and inference which did not assume normality

D. Removing large negative residuals

Xem đáp án

30/08/2021 9 Lượt xem

Câu 3: Which of the following sets of characteristics would usually best describe an autoregressive process of order 3 (i.e. an AR(3))?

A. A slowly decaying acf, and a pacf with 3 significant spikes

B. A slowly decaying pacf and an acf with 3 significant spikes

C. A slowly decaying acf and pacf

D.  An acf and a pacf with 3 significant spikes

Xem đáp án

30/08/2021 10 Lượt xem

Câu 4: What would be the consequences for the OLS estimator if autocorrelation is present in a regression model but ignored?

A. It will be biased

B. It will be inconsistent

C. It will be inefficient

D. All of a, b and c will be true

Xem đáp án

30/08/2021 9 Lượt xem

Chưa có bình luận

Đăng Nhập để viết bình luận

Bộ câu hỏi trắc nghiệm môn Kinh tế lượng - Phần 3
Thông tin thêm
  • 45 Lượt thi
  • 30 Phút
  • 20 Câu hỏi
  • Sinh viên