Gilles Moec, a London-based economist at Deutsche Bank, suggested that the European Central Bank team up with commercial lenders to battle Europe's financial crisis. The ECB could give banks incentives to buy bonds of troubled nations, such as Portugal, Spain and Ireland, Moec said. His "Plan B" proposal also suggests a "margin-call holiday," meaning banks will not need to provide more collateral if bond values decline. "Investors still don't know whether to buy from the periphery," Moec said. "But the rates the periphery are paying should be quite tempting, so it wouldn't take much for investors to start buying their debt."