"THERE is a lazy mindedness that we afford the do-gooders." That was Bono, the musician turned activist turned investor, lamenting the pitfalls of what has become an increasingly fashionable form of financing: social impact investing.
Just about every big Wall Street firm and big-time philanthropist has recently tried to get in on what is often called double bottom line investing. The idea is that an investment is not just intended to score a high return; perhaps more important, it is supposed to make a significant difference in an area that had been considered un-investable. Goldman Sachs, for example, created social impact bonds to reduce the recidivism rate for adolescent offenders at the Rikers...