BBC World Service - Business - Does microlending really help the poor?

BBC World Service - Business - Does microlending really help the poor?: "Academics have been trying to work out from the evidence whether microcredit does actually raise people's incomes.But it's been hard to do a proper scientific survey, since you need to compare those who do get a loan with a control group of similar people who don't.Dean Karlan, professor of economics at Yale University, has