The Volcker Rule goes into effect in July 2012. Under the rule proprietary trading operations of banks must be divested by 2012, with banks getting an additional three years to comply for specific situations. The financial industry is pushing back against the rule with comment letters from industry firms. Mr. Volcker outlined his response in his letter of comments to the objections raised by financial firms. To the objection that this would reduce liquidity in the market and raise corporate borrowing rates, Vocker says that too much liquidity is a problem because firms tend to bid up asset prices in the hope that they can always find buyers.