Asian shares and currencies fell on Monday on the first day of trading in 2016 after China factory activity contracted and the yuan weakened, while oil prices jumped as much as 3 percent on rising tensions in the Middle East. MSCI’s broadest index of Asia-Pacific shares outside Japan fell 1.7 percent, after shedding nearly 12 percent in 2015 as China’s cooling economy took a toll on its trade-reliant Asian neighbors and global commodity prices. Japan’s Nikkei (.N225) fell 2.6 percent to 2-1/2-month lows, while mainland China shares (.SSEC) tumbled more than 4 percent.