The US Treasury's effort to stabilise the banking system through the TARP programme is a hopelessly ill-conceived policy that enriches speculators at public expense, according to the buy-out firm supposed to be pioneering the joint public-private bank rescues.

"The taxpayers ought to know that we are in effect receiving a subsidy. They put in 40pc of the money but get little of the equity upside," said Mark Patterson, chairman of MatlinPatterson Advisers.

The comments are likely to infuriate Tim Geithner, the US Treasury Secretary, because MatlinPatterson took advantage of the TARP's matching funds to buy Flagstar Bancorp in Michigan. His confession appears to validate concerns that the bail-out strategy is geared towards Wall Street.