The attack makes the case that the industry has underperformed stockmarkets, taken excessive risks and overcharged investors.
The report from the Centre for the Study of Financial Innovation, a London-based think-tank, is likely to reignite the debate about the social value of leveraged buy-outs.
The study will also state that taxpayer money is underwriting buy-outs in the form of investment by public pension funds and debt financing from state-guaranteed banks, meaning the industry should be more transparent about its performance.
The buy-out industry has dismissed the report. Simon Walker, chief executive of the British Private Equity and Venture Capital Association, said: ??I think it is unbalanced and it is a beat-up.?
The report concedes: ??Private equity can help an economy, in principle.? However, it is mostly critical. Buy-outs are ??just another variation on the theme of ??heads they win, tails you lose???, says Peter Morris, its author and a former Morgan Stanley banker.