金声玉亮2.0模型评测报告

问题

There is a single choice question about econometrics. Answer the question by replying A, B, C or D.
Question: Which one of the following criticisms of the Dickey-Fuller/Engle-Granger approach to dealing with cointegrated variables is overcome by the Engle-Yoo (EY) procedure?
A. In the context of small samples, Dickey Fuller tests are prone to conclude that there is a unit root in a series when there is not
B. The Engle-Granger (EG) approach can only detect up to one cointegrating relationship even though there could be more than one
C. The variables are treated asymmetrically in the cointegrating tests
D. It is not possible to perform tests about the cointegrating relationship
Answer:

答案

模型	模型答案	正确答案
金声玉亮2.0	C	D
deepseekr1	The Engle-Yoo (EY) procedure addresses a key limitation of the Engle-Granger (EG) approach. While EG identifies cointegration by testing residuals from a static regression for stationarity, it does not provide valid standard errors or reliable hypothesis tests for the coefficients of the cointegrating vector due to non-standard asymptotic distributions. Engle-Yoo's third-step correction adjusts the estimation to enable valid inference on the cointegrating relationship, overcoming this criticism. Answer: D. It is not possible to perform tests about the cointegrating relationship	D
gpto1	D	D
GPT-4o	C	D
llama3.1-70B-Instruct	B	D
llama3.1-405B-Instruct	C. The variables are treated asymmetrically in the cointegrating tests The Engle-Yoo (EY) procedure is an alternative to the Engle-Granger (EG) approach for testing cointegration. One of the criticisms of the EG approach is that it treats the variables asymmetrically in the cointegrating tests, meaning that one variable is chosen as the dependent variable and the others as independent variables, which can lead to different results depending on the choice of dependent variable. The EY procedure overcomes this limitation by treating all variables symmetrically, allowing for a more robust test of cointegration. The other options are not correct because: A. The issue of small sample size and the tendency to conclude that there is a unit root when there is not is a general problem with unit root tests, including the Dickey-Fuller test, but it is not specifically addressed by the EY procedure. B. The EG approach can only detect up to one cointegrating relationship, but this is not a criticism that is overcome by the EY procedure. D. It is possible to perform tests about the cointegrating relationship using the EG approach, so this is not a criticism that is overcome by the EY procedure.	D
DeepSeek-Coder-V2	B	D
Qwen2-72B-Instruct	B	D
baichuan4	B	D
doubao	B	D
minimax	B. The Engle-Granger (EG) approach can only detect up to one cointegrating relationship even though there could be more than one	D
kimi	B. The Engle-Granger (EG) approach can only detect up to one cointegrating relationship even though there could be more than one.	D
wenxinyiyan	C Explanation: The Engle-Yoo (EY) procedure addresses the criticism that the Dickey-Fuller/Engle-Granger approach treats variables asymmetrically in the cointegrating tests. The EY procedure allows for a more symmetric treatment of the variables, overcoming this limitation of the earlier approach. Option A is not correct because the issue of small sample size and the tendency to falsely conclude the presence of a unit root is not specifically addressed by the EY procedure. Option B is incorrect because the limitation of the Engle-Granger approach to detect only one cointegrating relationship is not directly overcome by the EY procedure. The EY procedure focuses on improving the symmetry of variable treatment rather than increasing the number of detectable cointegrating relationships. Option D is not the correct answer because the EY procedure does not directly address the ability to perform tests about the cointegrating relationship. Its main contribution is in improving the symmetry of variable treatment in the cointegrating tests.	D
zhipu	B The Engle-Yoo (EY) procedure overcomes the criticism that the Engle-Granger (EG) approach can only detect up to one cointegrating relationship even though there could be more than one. This limitation is addressed by the EY procedure, which allows for the detection of multiple cointegrating relationships.	D
gpto1	D	D

模型

模型答案

正确答案

金声玉亮2.0

deepseekr1

The Engle-Yoo (EY) procedure addresses a key limitation of the Engle-Granger (EG) approach. While EG identifies cointegration by testing residuals from a static regression for stationarity, it does not provide valid standard errors or reliable hypothesis tests for the coefficients of the cointegrating vector due to non-standard asymptotic distributions. Engle-Yoo's third-step correction adjusts the estimation to enable valid inference on the cointegrating relationship, overcoming this criticism.

**Answer:** D. It is not possible to perform tests about the cointegrating relationship

gpto1

GPT-4o

llama3.1-70B-Instruct

llama3.1-405B-Instruct

C. The variables are treated asymmetrically in the cointegrating tests

The Engle-Yoo (EY) procedure is an alternative to the Engle-Granger (EG) approach for testing cointegration. One of the criticisms of the EG approach is that it treats the variables asymmetrically in the cointegrating tests, meaning that one variable is chosen as the dependent variable and the others as independent variables, which can lead to different results depending on the choice of dependent variable. The EY procedure overcomes this limitation by treating all variables symmetrically, allowing for a more robust test of cointegration.

The other options are not correct because:

A. The issue of small sample size and the tendency to conclude that there is a unit root when there is not is a general problem with unit root tests, including the Dickey-Fuller test, but it is not specifically addressed by the EY procedure.

B. The EG approach can only detect up to one cointegrating relationship, but this is not a criticism that is overcome by the EY procedure.

D. It is possible to perform tests about the cointegrating relationship using the EG approach, so this is not a criticism that is overcome by the EY procedure.

DeepSeek-Coder-V2

Qwen2-72B-Instruct

baichuan4

doubao

minimax

B. The Engle-Granger (EG) approach can only detect up to one cointegrating relationship even though there could be more than one

kimi

B. The Engle-Granger (EG) approach can only detect up to one cointegrating relationship even though there could be more than one.

wenxinyiyan

C

Explanation:
The Engle-Yoo (EY) procedure addresses the criticism that the Dickey-Fuller/Engle-Granger approach treats variables asymmetrically in the cointegrating tests. The EY procedure allows for a more symmetric treatment of the variables, overcoming this limitation of the earlier approach.

Option A is not correct because the issue of small sample size and the tendency to falsely conclude the presence of a unit root is not specifically addressed by the EY procedure.

Option B is incorrect because the limitation of the Engle-Granger approach to detect only one cointegrating relationship is not directly overcome by the EY procedure. The EY procedure focuses on improving the symmetry of variable treatment rather than increasing the number of detectable cointegrating relationships.

Option D is not the correct answer because the EY procedure does not directly address the ability to perform tests about the cointegrating relationship. Its main contribution is in improving the symmetry of variable treatment in the cointegrating tests.

zhipu

B

The Engle-Yoo (EY) procedure overcomes the criticism that the Engle-Granger (EG) approach can only detect up to one cointegrating relationship even though there could be more than one. This limitation is addressed by the EY procedure, which allows for the detection of multiple cointegrating relationships.

gpto1