Some of the largest private equity groups are raising the performance fees they charge investors to well above the industry’s norm at a time when institutions are fighting to put money into the best funds. Institutional investors are in some cases paying 30 per cent in “carried interest” — the share of profits taken by the private equity groups — up from the traditional 20 per cent share of profits that the industry has charged for decades. Funds charging this “super carry” have been launched...