Câu hỏi: 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
Câu 1: 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
30/08/2021 9 Lượt xem
Câu 2: Consider the following picture and suggest the model from the following list that best characterises the process:
A. An AR(1)
B. An AR(2)
C. An ARMA(1,1)
D. An MA(3)
30/08/2021 7 Lượt xem
Câu 3: A normal distribution has coefficients of skewness and excess kurtosis which are respectively:
A. 0 and 0
B. 0 and 3
C. 3 and 0
D. Will vary from one normal distribution to another
30/08/2021 10 Lượt xem
Câu 4: If a Johansen “max” test for a null hypothesis of 1 cointegrating vectors is applied to a system containing 4 variables is conducted, which eigenvalues would be used in the test?
A. The largest 1
B. The Second largest
C. The Second smallest
D. The smallest
30/08/2021 10 Lượt xem
Câu 5: If the number of non-zero eigenvalues of the pi matrix under a Johansen test is 2, this implies that
A. There are 2 linearly independent cointegrating vectors
B. There are at most 2 linearly independent cointegrating vectors
C. There are 3 variables in the system
D. There are at least 2 linearly independent cointegrating vectors
30/08/2021 7 Lượt xem
Câu 6: If a residual series is negatively autocorrelated, which one of the following is the most likely value of the Durbin Watson statistic?
A. Close to zero
B. Close to two
C. Close to four
D. Close to one
30/08/2021 9 Lượt xem

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