Standard&Poor's Ratings Services affirmed its 'AAA' long-term rating and 'A-1+' short-term rating on the Massachusetts Institute of Technology's (MIT) outstanding debt, some of which was issued by the Massachusetts Development Finance Agency (f/k/a the Massachusetts Health and Educational Facilities Authority). The outlook is stable. The 'AAA' rating reflects our view of MIT's substantial endowment, incredible demand for its programs, growth in research, and positive operating performance. This offsets our view of the Institute's adequate, but lower-than-average financial resource ratios compared to the 'AAA' category, due in part to its recent century bond issuance in 2011. At the time of issuance, it was our understanding that the series 2011 bonds took care of the university's medium-term debt needs and