1. Optimistic investors
U.S. stock futures are making a decisive move higher and most European markets are rising in early trading.
Shares in major British banks are climbing by about 3% in London after "stress tests" conducted by the Bank of England showed that the sector has become more resilient to economic shocks.
Nearly all Asian markets ended the day with significant gains. The main Australian index led the pack higher with a 1.8% jump.
And casino stocks in Hong Kong were jumping as investors bet that the worst may be over for Macau after it experienced a steep slump in gambling activity.
Traders in Asia seemed happy to overlook weak economic data out of China. The National Bureau of Statistics reported that China's all-important factory sector is losing steam, with manufacturing activity slumping to a three-year low in November.