问题


There is a single choice question about econometrics. Answer the question by replying A, B, C or D.
Question: Which of the following is correct concerning logit and probit models?
A. They use a different method of transforming the model so that the probabilities lie between zero and one
B. The logit model can result in too many observations falling at exactly zero or exactly one
C. For the logit model, the marginal effect of a change in one of the explanatory variables is simply the estimate of the parameter attached to that variable, whereas this is not the case for the probit model
D. The probit model is based on a cumulative logistic function
Answer:

答案

模型 模型答案 正确答案
金声玉亮2.0

A. They use a different method of transforming the model so that the probabilities lie between zero and one.

Explanation:

* Logit and probit models are both used for binary response variables, but they differ in the transformation method used to ensure that the predicted probabilities lie between 0 and 1.
* The logit model uses the logistic function, while the probit model uses the cumulative distribution function of the standard normal distribution.
* The other options are incorrect:
+ B: The logit model does not inherently result in too many observations falling at exactly zero or exactly one.
+ C: The marginal effect of a change in an explanatory variable is not simply the estimate of the parameter attached to that variable in either the logit or probit model. The marginal effect depends on the specific values of the explanatory variables and the model's functional form.
+ D: The probit model is based on the cumulative distribution function of the standard normal distribution, not a cumulative logistic function.
A
deepseekr1

A. They use a different method of transforming the model so that the probabilities lie between zero and one

**Answer:** A
A
gpto1 A A
GPT-4o A. They use a different method of transforming the model so that the probabilities lie between zero and one A
llama3.1-70B-Instruct

A
A
llama3.1-405B-Instruct

A
A
DeepSeek-Coder-V2 A A
Qwen2-72B-Instruct A. They use a different method of transforming the model so that the probabilities lie between zero and one A
baichuan4 A A
doubao A A
minimax A. They use a different method of transforming the model so that the probabilities lie between zero and one A
kimi A. They use a different method of transforming the model so that the probabilities lie between zero and one A
wenxinyiyan A

Explanation:

A. They use a different method of transforming the model so that the probabilities lie between zero and one.
This is correct. The logit and probit models are both used for binary response variables, but they differ in the way they transform the linear predictor to ensure that the predicted probabilities lie between 0 and 1. The logit model uses the logistic function, while the probit model uses the cumulative distribution function (CDF) of the standard normal distribution.

B. The logit model can result in too many observations falling at exactly zero or exactly one.
This is incorrect. Both the logit and probit models are designed to predict probabilities that are strictly between 0 and 1. They do not directly result in predicted probabilities of exactly 0 or 1, unless in extreme cases with very large or small linear predictors, which are typically considered numerical artifacts rather than meaningful predictions.

C. For the logit model, the marginal effect of a change in one of the explanatory variables is simply the estimate of the parameter attached to that variable, whereas this is not the case for the probit model.
This is incorrect. In both the logit and probit models, the marginal effect of a change in an explanatory variable is not simply the estimate of the parameter attached to that variable. The marginal effect depends on the current values of all the explanatory variables and the specific form of the transformation function (logistic or normal CDF) used in the model.

D. The probit model is based on a cumulative logistic function.
This is incorrect. The probit model is based on the cumulative distribution function (CDF) of the standard normal distribution, not the cumulative logistic function. The cumulative logistic function is used in the logit model.
A
zhipu A. They use a different method of transforming the model so that the probabilities lie between zero and one

Explanation:
- Logit and probit models are both used to model binary dependent variables and ensure that the predicted probabilities lie between zero and one.
- The logit model uses the logistic function for this transformation, while the probit model uses the cumulative normal distribution function.
- Option B is incorrect because the logit model does not inherently result in too many observations at exactly zero or one; this can be an issue with any model if the data or model specification is poor.
- Option C is incorrect because the marginal effect in the logit model is not simply the parameter estimate; it depends on the probability and the parameter estimate, similar to the probit model.
- Option D is incorrect because the probit model is based on the cumulative normal distribution function, not the cumulative logistic function. The cumulative logistic function is used in the logit model.
A
gpto1 A A