AP Photo/Andrew HarnikThe stock market can’t vote in November, but an analysis of how investors reacted in real time to the first presidential debate last month and to the release of tapes damaging to the Donald Trump campaign suggest that if it could, it would be backing Democrat Hillary Clinton. That’s according to a new paper from economists Justin Wolfers of the University of Michigan and Eric Zitzewitz of Dartmouth which looked at real-time reaction to the first presidential debate, held late last month. The authors, both member of the National Bureau of Economic Research, looked at movement in the Standard & Poor’s 500 index during the hours from 9 p.m.