Daily Archives: December 12, 2017

Rising Above the Noise in ESG: Green Bonds

The emergence of ethical and sustainable concerns and the need for environmental investing has come with a wide range of options for fixed income market participants to navigate. One approach has been to rely on evaluation metrics, or ratings that measure the environmental and social impact of companies’ operations. The main challenge of this approach is that currently there is no clear standard of measurement in the market. Researchers at MIT working on the Aggregate Confusion Project found that when they compared “two of the top five ESG rating agencies and compute the rank correlation across firms in a particular year, we are likely to obtain a correlation of the order of 10 to 15 percent. At least the correlation is positive! It is very likely (about 5 to 10 percent of the firms) that the firm that is in the top 5 percent for one rating agency belongs to the bottom 20 percent for the other.”

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