Before the Social Capital Markets Conference September 1-3rd, Matthew Bishop of the Economist wrote:

"Arguably the biggest obstacle to the creation of social capital markets is the lack of a common measure of how much good has been done...The Global
Impact Investing Rating System (GIIRS) is the result of collaboration between some of the leading organisations in social capital markets. It includes a set of 'impact reporting and investment standards'a much-needed attempt to develop common definitions of the main terms used in social capital markets."

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