Immigrants to the U.S. are more likely to start businesses than native-born Americans are, according to a study that takes a wide-ranging look at registered businesses across the country. Co-authored by an MIT economist, the study finds that, per capita, immigrants are about 80 percent more likely to found a firm, compared to U.S.-born citizens. Those firms also have about 1 percent more employees than those founded by U.S. natives, on average. “Immigrants, relative to natives and relative to their share of the population, found more firms of every size,”…