Lloyd Blankfein, chief executive of Goldman Sachs, has attacked some investment banking products as socially useless and said that the controversy over bankers’ pay was both understandable and appropriate, in a speech to the Handelsblatt banking conference in Frankfurt. He did not comment on the "social" usefulness of his new townhouse with its 12 car garage. Blankfein said that multi-year bonuses should be outlawed and senior staff should receive large proportions of pay in stock, rather than cash. Top executives should be forced to hold the bulk of that stock until retirement, he said. He did no comment on the...