BOSTON (Standard&Poor's) Aug. 4, 2014--Standard&Poor's Ratings Services said that it assigned its 'AA+' rating to Minnesota's series 2014 A-E general obligation (GO) bonds and its 'AA' rating to Minnesota's series 2014 certificates of participation (COPs), which the state's appropriation payments secure. At the same time, Standard&Poor's affirmed its 'AA+' rating on Minnesota's GO state bonds outstanding, its 'AA' rating on the state's appropriation debt outstanding, and its 'A+' rating on an issue the state's moral obligation backs. The outlook is stable. "Credit factors supporting the ratings include our view of the state's deep and diverse economy, improved financial results, and moderate debt levels," said Standard&Poor's credit analyst Henry Henderson. The series 2014