Probit and logit

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NO.PZ201709270100000208

问题如下：

8. Should Honoré have estimated the models in Exhibit 1 and Exhibit 2 using probit or logit models instead of traditional regression analysis?

选项：

Both should be estimated with probit or logit models.

Neither should be estimated with probit or logit models.

Only the analysis in Exhibit 1 should be done with probit or logit models.

解释：

B is correct. Probit and logit models are used for models with qualitative dependent variables, such as models in which the dependent variable can have one of two discreet outcomes (i.e., 0 or 1). The analysis in the two exhibits are explaining security returns, which are continuous (not 0 or 1) variables.

请问，因为两个模型都用了WHETHER这个变量作为DEPENDENT VARIABLE，那为什么不能属于Probit and logit，答案也可以是O 或者1呀， 1 就是YES, O 就是NO。谢谢

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星星_品职助教 · 2021年04月07日

同学你好，

是否用probit or logit model取决于Y变量本身是什么。“whether”不是一个变量。

Exhibit1和2的Y变量都是“return”，这是个连续的变量，所以不能使用probit or logit models.

Exhibit 1：......he uses the average annualized rate of return(in percent) of 555 large-cap US equity funds over the past five years.

Exhibit 2：.....establish whether bond market returns (proxied by returns of long-term US Treasuries) and stock market returns(proxied by returns of the S&P 500 Index) explain the returns of a portfolio of utility stocks being recommended to clients.

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NO.PZ201709270100000208 问题如下 8. ShoulHonoré have estimatethe mols in Exhibit 1 anExhibit 2 using probit or logit mols insteof trationregression analysis? Both shoulestimatewith probit or logit mols. Neither shoulestimatewith probit or logit mols. Only the analysis in Exhibit 1 shoulne with probit or logit mols. B is correct. Probit anlogit mols are usefor mols with qualitative pennt variables, sumols in whithe pennt variable chave one of two screet outcomes (i.e., 0 or 1). The analysis in the two exhibits are explaining security returns, whiare continuous (not 0 or 1) variables. Exhibit 2.....establish whether bonmarket returns (proxiereturns of long-term US Treasuries) anstomarket returns(proxiereturns of the S P 500 Inx) explain the returns of a portfolio of utility stocks being recommento clients.这句话的意思不是说，是否bonmarket returns和stomarket returns可以什么什么吗？答案不就是要么能，要么不能吗？这个不是逻辑函数吗？

2022-12-09 12:58 1 · 回答

老师好一般什么情况下要用probit anlogit mols？谢谢

2020-10-02 18:39 1 · 回答

Neither shoulestimatewith probit or logit mols. Only the analysis in Exhibit 1 shoulne with probit or logit mols. B is correct. Probit anlogit mols are usefor mols with qualitative pennt variables, sumols in whithe pennt variable chave one of two screet outcomes (i.e., 0 or 1). The analysis in the two exhibits are explaining security returns, whiare continuous (not 0 or 1) variables. Exhibits 1的mmy variable 不是选0和1吗？为什么不能选，谢谢

2020-06-01 15:26 1 · 回答

Exhibit2验证的不是whether bonmarket return anstomarket return explain the return of a portfolio…不应该是定性的Y？虽然没有这个

2019-04-11 21:14 1 · 回答

Probit and logit

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