Research by Cambridge Judge Business School’s Elroy Dimson, Oguzhan Karakas and Xi Li, published last year, used data from one large institutional investor to show a marked outperformance by stocks it held, once the investor had successfully intervened on an environmental or social issue, such as reducing carbon emissions targets. There was no downside; if the engagement was unsuccessful, the company merely tracked the index. Significantly, there were no such clear-cut returns after engagements on corporate governance issues.
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