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长槲 · 2024年05月21日

各种相关性

NO.PZ2022120703000073

问题如下:

The ESG rating correlation among different data providers is most likely:

选项:

A.negatively correlated.

B.uncorrelated.

C.positively correlated.

解释:

C is correct because "one challenge is that the agreement or correlation between the various ratings agencies is low. A study by Chatterji at al. finds an approximate 0.3 correlation. (Or more technically, this analysis found pairwise tetrachoric correlations for three years among the six raters, with a mean correlation of 0.30 (about 2 standard deviations). However, this also included some negative ones’ correlations, meaning what one rater found responsible another found ‘irresponsible’.) A 2019 study by Gibson et al. shows a range of correlations (see Table 7.4). Yet another study by Berg et al. shows a range of correlations as well: Berg looks at a dataset of ESG ratings from six different raters – namely, KLD (MSCI Stats), Sustainalytics, Vigeo Eiris (Moody’s), RobecoSAM (S&P Global), Asset4 (Refinitiv) and MSCI – the correlations between the ratings are on average 0.54 and range from 0.38 to 0.71." Table 7.4 presents 4 categories of correlations ranging from 0.2 to 0.46.

A is incorrect because the academic study results and Table 7.4 demonstrate that the correlation is positively correlated.

B is incorrect because the academic study results and Table 7.4 demonstrate that the correlation is positively correlated.

请列举考纲中全部的相关性问题, 正 负 不可比

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净净_品职助教 · 2024年05月21日

嗨,从没放弃的小努力你好:


ESG评级结果的关系:low correlation but still positive

信用评级结果的关系:highly positively correlated

ESG评级与信用评级的关系:still hotly debated

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虽然现在很辛苦,但努力过的感觉真的很好,加油!

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2024-05-19 18:59 1 · 回答

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2024-05-09 00:22 1 · 回答

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2024-03-05 01:21 1 · 回答