A recent Duke University study found that more than a fourth of America's new high-tech companies from 1995-2005 were founded by immigrants. However, the proportion varies by state. Ohio had only 14 percent, while Michigan had 33 percent -- higher than the national average. Thomas Gutteridge, dean of the University of Toledo's College of Business Administration, explained that Ohio didn't do as well nationally because most of its research is done solely at Ohio State University, whereas Michigan has big research centers at Wayne State, Michigan State and the University of Michigan.