The private equity industry took a tentative step towards improving its image on Tuesday, as 13 of the world’s biggest buy-out groups signed up to new guidelines agreed with the United Nations Principles for Responsible Investment (UNPRI).
As the credit crisis has made life tougher for private equity, buy-out bosses have been queuing up to call for the industry to pay closer attention to non-financial questions, such as social, environmental and transparency issues.

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