Reuters/Carlos BarriaHere is what you need to know. Small-business optimism soars. NFIB Small Business Optimism soared to 107.5 in November, hitting its highest level since 1983, according to Bloomberg. UK inflation hits an almost 6-year high. Consumer prices rose 3.1% in November, making for the fastest pace since March 2012, Office for National Statistics data showed. Saudi Arabia is reportedly planning to hike gas prices by 80%.