The "Global Family Business Index"[5] comprises the largest 500 family firms around the globe. In this index—published for a first time in 2015 by Center for Family Business University of St. Gallen and EY—for a privately held firm, a firm is classified as a family firm in case a family controls more than 50% of the voting rights. For a publicly listed firm, a firm is classified as a family firm in case the family holds at least 32% of the voting rights.