开发者:上海品职教育科技有限公司 隐私政策详情

应用版本:4.2.11(IOS)|3.2.5(安卓)APP下载

Maggie · 2024年11月27日

NO.2024021801000048

答案判断及提示不正确 没有看明白解析
1 个答案

净净_品职助教 · 2024年11月27日

嗨,努力学习的PZer你好:


ESG评级结果的相关性很低,但仍然为正相关。

相关性这个指标用ρ来表示,ρ的取值为[-1,1],当ρ=0,代表不相关;当ρ>0,代表正相关。根据教材中提到的几项研究,ESG评级结果的相关性大概再0.2~0.5之间,属于正相关,但是相关性较低,当ρ取值越接近于1或者-1时,相关性越强。

----------------------------------------------
加油吧,让我们一起遇见更好的自己!

  • 1

    回答
  • 0

    关注
  • 4

    浏览
相关问题

NO.PZ2024021801000048问题如下The ESG rating correlation among fferent ta provirs is most likely:A.negatively correlateB.uncorrelateC.positively correlate Correbecause one challenge is ththe agreement or correlation between the various ratings agencies is low. A stu Chatterji al. fin approximate 0.3 correlation. (Or more technically, this analysis founpairwise tetrachoric correlations for three years among the six raters, with a mecorrelation of 0.30 (about 2 stanrviations). However, this also inclusome negative ones’ correlations, meaning whone rater founresponsible another foun‘irresponsible’.) A 2019 stu Gibson et al. shows a range of correlations. Yet another stu Berg et al. shows a range of correlations well: Berg looks a taset of ESG ratings from six fferent raters – namely, KL(MSStats), Sustainalytics, Vigeo Eiris (Moo’s), RobecoS(S P Global), Asset4 (Refinitiv) anMS– the correlations between the ratings are on average 0.54 anrange from 0.38 to 0.71. Table 7.4 presents 4 categories of correlations ranging from 0.2 to 0.46. 答案是不是应该是b?

2024-10-28 13:58 1 · 回答

答案判断及提示不正确 解析没有明白题干

2024-08-05 16:45 2 · 回答

NO.PZ2024021801000048 问题如下 The ESG rating correlation among fferent ta provirs is most likely: A.negatively correlate B.uncorrelate C.positively correlate Correbecause one challenge is ththe agreement or correlation between the various ratings agencies is low. A stu Chatterji al. fin approximate 0.3 correlation. (Or more technically, this analysis founpairwise tetrachoric correlations for three years among the six raters, with a mecorrelation of 0.30 (about 2 stanrviations). However, this also inclusome negative ones’ correlations, meaning whone rater founresponsible another foun‘irresponsible’.) A 2019 stu Gibson et al. shows a range of correlations. Yet another stu Berg et al. shows a range of correlations well: Berg looks a taset of ESG ratings from six fferent raters – namely, KL(MSStats), Sustainalytics, Vigeo Eiris (Moo’s), RobecoS(S P Global), Asset4 (Refinitiv) anMS– the correlations between the ratings are on average 0.54 anrange from 0.38 to 0.71. Table 7.4 presents 4 categories of correlations ranging from 0.2 to 0.46. 是关联度低而不是正相关。

2024-06-28 12:11 1 · 回答

知识点对应错误 这个确认是正相关???

2024-06-24 08:59 1 · 回答