NEW YORK (Standard&Poor's) Feb. 16, 2012--Standard&Poor's Ratings Services has affirmed its 'AAA' long-term rating on various revenue bonds issued for and by Harvard University, Mass. At the same time, Standard&Poor's affirmed its 'A-1+' short-term rating on the university's variable-rate demand bonds and commercial paper notes, issued for and by the university. "The stable outlook reflects our expectation that during the next two years, Harvard's demand trends will likely remain extremely strong and financial operations will continue to be balanced, including the university's various components of endowment spending," said Standard&Poor's credit analyst Mary Peloquin-Dodd. "The stable outlook also reflects our expectation that overall liquidity will likely remain stable and that any debt issued