DAVOS, Switzerland (AP) - The global economic outlook just got brighter after this week's big stimulus from the European Central Bank, leading policymakers from around the world said Saturday. In a panel at the World Economic Forum in Davos, they said a perkier Europe, coupled with a prolonged period of low oil prices, could help shore up the global economy following a period of underperformance that has prompted many forecasters to reduce their growth forecasts. "Lower oil prices and the big decision by ECB could further improve world economic outlook," said Haruhiko Kuroda, governor of the Bank of Japan.