Marriott International is targeting "high single-digit percentage increases" for 2013 corporate rates in North America,

president and CEO Arne Sorenson said in the company's second-quarter earnings release. During the quarter, rates increased by 4.3 percent in North America and by 3 percent outside of North America compared with the second quarter of 2011. Both group revenue and special corporate revenue were up 8 percent during the quarter, according to Sorenson.