Michigan's University Research Corridor, an alliance of the state's three largest universities, is growing in several areas, including a $15.5 billion economic impact on the state, according to an annual report to be unveiled Wednesday. However, when compared with six other clusters of university alliances around the country, the URC's national ranking in technology transfers to the private sector has remained the same since 2007. "While we are making progress, so are those other clusters around the country," said Jeff Mason, URC executive director. "We've got to keep focusing initiatives and efforts around that." Formed in 2006 with the University of Michigan, Michigan State University and Wayne State University, the URC has aimed to accelerate economic development in the state by educating students, supporting innovation and technology transfer to the marketplace.