Source: MarketWatch

Central bankers and regulators are rethinking their faith in the ability of market forces alone to police the increasingly complex global financial system.

In a speech in Jackson Hole, Wyo., Federal Reserve Chairman Ben Bernanke said the Fed’s toughest challenge is not restoring growth, fighting inflation, or providing fragile banks with sufficient liquidity to get through the current financial crisis. Rather, it’s finding a way to prevent the next one.

The bailout of Bear Stearns in particular represents a failure of the supervisors to monitor the system. Bear wasn’t a particularly large institution, but its assets and liabilities were so thoroughly linked with the rest of the financial world that its failure would have been devastating, Bernanke said.

It’s not that Bear Stearns was too big to fail, it was too interconnected.

Bernanke suggested that the Fed and other bank supervisors need to use a holistic approach, rather than look at each institution in isolation. The explosion of securitization and derivatives in the past few decades has shifted risks in ways that aren’t immediately apparent. A risk that would be manageable for one bank would be unbearable if it applied to all, because systemic risks tend to create illiquid markets.

The regulators also have to clearly explain when and under what conditions financial institutions will be allowed to fail and when they will be bailed out, Bernanke said. To limit moral hazard, bailouts should be structured so that shareholders are wiped out, similar to the way failing banks are now treated by the Federal Deposit Insurance Corp.

Imposing systemwide supervision and regulation won’t be easy to design or cheap to implement. Unintended consequences are certain to appear. But the alternative of doing nothing would consign us to periodic costly boom and bust cycles that could leave us all poorer.

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