WASHINGTON (MarketWatch) -- In the wake of the  financial market turmoil that arose over the summer and even now threatens to  push the U.S. into recession, there has been a remarkable lack of  finger-pointing so far over the cause of the crisis.
 But one observer, 
Tom Schlesinger, the founder and executive  director of the Financial Markets Center, a think tank that has followed the  Federal Reserve closely for the past decade, believes the blame for the crisis  falls squarely on the Fed and accuses the central bank of "regulatory  foot-dragging" that has harmed the public.
Schlesinger maintains the Fed's prevailing regulatory philosophy  has shifted from that of 20 or 25 years ago, which in essence was "here is the  line between right and wrong, don't cross it," to a current underlying policy  that "anything and everything that might be called financial innovation ought to  be embraced."
 "This is a very faulty premise that deserves debate and reflection  and ultimately, in my opinion, a changed perspective," Schlesinger said in an  interview with MarketWatch.
 He points specifically to the opposition to government regulation  that flourished at the U.S. central bank under former Fed chief Alan Greenspan  and has continued unabated under his successor Ben Bernanke.
 At the time Bernanke was preparing to succeed Greenspan,  Schlesinger predicted his biggest challenge would be the aftermath of  Greenspan's laissez-faire approach to regulation.
 Willing to go only so far
 
 The current credit crisis began early in 2007 with rising  delinquencies in the subprime mortgage sector. Like a slow fuse, these  difficulties spread throughout the global financial system as investors realized  that these bad mortgages had been securitized, pooled together and sold to  financial institutions around the world.
 By early August, parts of the financial system were close to frozen  and central banks were forced to inject billions of dollars to add liquidity to  maintain the workings of the credit markets.
 Over the last two months, some markets have recovered, but problem  areas remain, particularly in the London market for structured investment  vehicles, or SIVs. There is concern in financial markets about bank exposure to  these investment pools and concern that possible forced sales of their assets  might shock already jittery credit markets.
 Separately, Bank of America, JPMorgan and Citigroup are leading a  plan to raise $80 to $100 billion to help buy some of the assets held by SIVs  facing collapse.
 But these same international bankers spent last weekend in the  corridors of the International Monetary Fund's annual meeting urging government  officials not to rush to adopt new rules to get the financial market turmoil  under control.
 Schlesinger calls this reaction by bankers "misguided, predictable  and familiar."
 "It is sort of stunning that as the biggest banks prepare to  conduct a bailout of unprecedented scope, they are at the same time warning for  excessive caution on the regulatory side, which is exactly the type of approach  that might have spared some of them the consequence of their own worst  excesses," he said.
 Early warnings went unheeded
 In his recent autobiography, Greenspan said when he accepted the  top Fed job, he worried that his Ayn Randian brand of libertarianism would make  it difficult to be a bank regulator and said he planned to allow others at the  Fed to take the lead.
 Upon joining the Fed, Greenspan said he had a "pleasant surprise"  when he found the Fed staff was not so keen on regulation either. Together, they  interpreted congressional legislation with a view to "letting markets work," he  wrote.
 Schlesinger says this practice was actually "regulatory  foot-dragging" where the Fed had a clear obligation under law to police markets  but went about it "with such reluctance that in some cases the supervision is  difficult to detect."
 A perfect illustration of how this "regulatory minimalism" impacted  the current market crisis is the Fed's lack of regulation of SIVs that have been  under pressure.
 In January 2003, after a review of the collapse of Enron Corp., a  Senate investigation found that some major U.S. financial institutions had  "deliberately misused structured finance techniques" to help Enron engage in  deceptive accounting or tax strategies in return for millions of dollars in  fees. 
Read  Senate report.The staff report recommended that the Fed and the Securities and  Exchange Commission review how banks use complex structured financial products  and issue guidance on acceptable and unacceptable practices by the end of 2003.
 But the Fed and the SEC opted against coming out with a list of new  guidelines, stating that they favored a principles-based approach rather than a  more prescriptive approach to regulation. Schlesinger contends this resulted in  the agencies issuing final guidance in 2006 "that in essence said do whatever  you want -- anything goes."
 "This is a perfect example of the unwillingness of the Fed to take  a strict approach to policing structured finance products has come back to haunt  the entire system," he said.
 Could frenzy have been prevented?
 In addition, the Fed also could have dampened the Wild West market  conditions for subprime mortgages that resulted in so many poor loans due to  fraud, says Schlesinger. 
 In an interview on the CBS News' program "60 Minutes," Greenspan  said the Fed couldn't stop subprime mortgage originators.
 Schlesinger disagrees. Although the abuses came from independent  originators and not banks, Schlesinger said the Fed had "all or most" of the  authority it needed to police the market under two laws passed by Congress.
 "The Fed's unwillingness to flex the muscle that those statues  granted is a real black mark on the central bank," he said.
 Schlesinger detects no change in the Fed's regulatory stance in the  20 months since Bernanke took the reigns at the Fed, saying if there is any  re-examination of policy underway the Fed isn't talking about it in public.
 Bernanke will have a chance to put his own stamp on regulation in  coming months as congressional democrats take an interest in consumer protection  in the wake of the debt crisit. 
See  full story. The Fed has already promised to craft rules to address deceptive  mortgage lending practices.
Schlesinger said he has some hope the regulatory pendulum will  eventually move in the other direction, but cautions it won't be an easy shift.
 "It will require some real assertiveness in Congress that has been  by-and-large pretty passive on these issues. I think it will also take some real  dissent, debate and new thinking in academia and the economics profession as  well," he said. 
 
 Greg Robb is a senior reporter for MarketWatch  in Washington.