Investors have more to worry about than Greece's mountain of debt, according to The Economist. Fearful that their fragile recovery might collapse, developed countries have not offered a "credible, medium-term fiscal plan" for withdrawing stimulus, The Economist notes. "Some of today's nervousness comes from 'policy risk'. Nobody -- neither firms, banks nor individuals -- is quite sure where government policy is going. The more that governments can do to reduce such uncertainty, the stronger the recovery is likely to be."