The shadow banking system today is considerably smaller than at the height of the housing bubble six or seven years ago. And it is very likely that some forms of shadow banking most closely associated with that bubble have disappeared forever. But as the economy recovers, it is nearly as likely that, without policy changes, existing channels for shadow banking will grow, and new forms creating new vulnerabilities will arise.
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We should create greater transparency with respect to the various transactions and markets that comprise the shadow banking system. For example, large segments of the repo market remain opaque today. In fact, at present there is no way that regulators or market participants can precisely determine even the overall volume of bilateral repo transactions--that is, transactions not settled using the triparty mechanism. It is encouraging that the Treasury Department's new Office of Financial Research is working to improve information about this market, while the Securities and Exchange Commission is considering approaches to enhanced transparency in the closely related securities lending market.
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A second phase of triparty reform is now underway, with the Federal Reserve using its supervisory authority to press for further action not only by the clearing banks, who of course manage the settlement process, but also by the dealer affiliates of bank holding companies, who are the clearing banks' largest customers for triparty transactions. But this approach alone will not suffice. All regulators and supervisors with responsibility for overseeing the various entities active in the triparty market will need to work together to ensure that critical enhancements to risk management and settlement processes are implemented uniformly and robustly across the entire market, and to encourage the development of mechanisms for orderly liquidation of collateral, so as to prevent a fire sale of assets in the event that any major triparty market participant faces distress.