Ajay Banga, the World Bank’s new president, said the lender must become bigger as well as better at measuring its impact so it can help fund some of the trillions of dollars in global development needs. Changes at the world’s largest anti-poverty lender will boost its lending capacity by about $150-billion over the next decade, Banga said Wednesday in Marrakech, Morocco, during the annual meetings of the bank and the International Monetary Fund.