Europe Factors to Watch-Shares set to drop ahead on PMIs

PARIS, April 1 (Reuters) - European stocks were set to start the new quarter on a negative note, mirroring a sell-off on Wall Street and after poor macro data from China. Surveys of China's factory and services sectors showed stubborn weakness in the world's second-biggest economy in March, fuelling expectations that Beijing will have to roll out more policy support to avert a sharper slowdown. Investors awaited a batch of manufacturing data from the euro zone, which should shed light