When the Levee Breaks, Redux
Recognition is dawning that clearing mandates-the supposed silver bullet for making the derivatives market safe-are not the panacea that their advocates claimed. Recently, major regulators in the US and the UK have warned about the dangers of concentrating so much risk in CCPs. The recognition is spreading to the press too, as illustrated by this article in The Economist:
The source of all this angst is the clearing-house, a mundane bit of financial-market plumbing that sits between buyers and sellers in transactions. And the reason why people are fretting is that G20 policymakers have seized upon clearing as the solution to some big problems in the over-the-counter derivatives market.
. . . .
That feeds worries about the other effect of lots more clearing: a new concentration of risk. Moving derivatives trades to clearing-houses mitigates the effect of a default of a clearing member (Lehman Brothers’ cleared trades were handled smoothly in 2008, for example). But it makes the impact of a clearing-house itself going down much worse. They may lack the heft of big banks, but few financial institutions are more interconnected. Failures are rare but they do happen: Hong Kong’s futures clearing-house ran out of resources in 1987, for example, and it took a government bail-out and the closure of the main stockmarket for things to get back to normal.
This should not be a surprise-after all, it’s not like what happened in Hong Kong-or in Chicago-in 1987 was a big secret. And it’s not as if nobody, ahem, has been raising this point for going on four years now.
And that italicized part is just too rich. Didn’t Timmy! and GiGi constantly-and I mean constantly-tell us that clearing eliminated interconnections in the financial system? Yes they did! I guess that explanation is now seen to be the BS it always was. I’ve been calling BS on that for about three years. I’m waiting for the dynamic duo to admit they were either ignorant, or liars. There is no third alternative.
The aforementioned regulators are demanding that CCPs be made immune from failure. The Economist agrees:
The more systemic they become, the more tightly clearing-houses should be regulated. That means more clarity over their collateral and margining policies. It means agreeing on plans for recapitalising a failing entity without tapping the taxpayer. And it means getting clearing-houses to hold more equity: LCH.Clearnet had just €333m ($463m) of capital in 2011, compared with collateral and cash under management that averaged €73 billion. Clearing can achieve many things. Solving the too-big-to-fail problem is not one of them.
Sigh. On the one hand, it is good to see growing awareness of the systemic vulnerabilities that CCPs create. On the other, it is distressing that regulators and commentators seem to have target fixation and can focus on only one thing at a time. Put differently, they fail to consider how the financial system will adjust to attempts to make one part of the system safer.
I’ve also written about this ad nauseum. The point is that raising margins, or increasing the size of default funds, or changing margin calculations, or tightening up restrictions on eligible collateral, or other measures to improve the safety of CCPs will induce reactions and adjustments elsewhere in the financial system, and these adjustments have systemic implications.
For instance, requiring more collateral is likely to lead to the growth of systemically-fragile collateral transformation services and other shadow banking mechanisms to secure collateral to post for CCP margins. Expanding CCP member commitments to default funds increases their exposure to wrong way risks, and is an important source of interconnection in the financial markets.
I return to the 1987 Chicago experience. Yes, the big exchange CCPs were under stress, but a major source of stress in the financial system as a whole was due to the extraordinary need for liquidity to meet margin calls-the very mechanism that is put in place to protect CCPs against default. Sometimes “safety” equipment can be downright dangerous.
I return to a metaphor I’ve used before: that of flood controls. Building up levees to protect one location can increase the risk of a catastrophic flood elsewhere in a river system. It is good that more regulators and market observers recognize that CCPs are a source of systemic risk, but the levee-building reflex is worrisome in the extreme. It suggests an inability to think about the financial system as a whole, a system that reacts to changes imposed on one part of it. These responses are not necessarily salutary, and can be downright frightening.
The responses need to be anticipated, to the extent possible. But it is often difficult to do that with accuracy. Which means that it is necessary to proceed cautiously when making the levee around CCPs higher and higher. There will be responses to this process, and it is likely best to proceed cautiously and incrementally, seeing what the responses are to the gradual changes, and then adjusting accordingly. Wholesale changes made in a hurry focused monomaniacally on one part of the system are a recipe for an major disaster elsewhere in the system.
I say again: to understand how policy changes affect systemic risk you need to think of the financial system as an organic whole, a system that responds often unpredictably to changes imposed on one part of it. Although it is encouraging to see that the magical thinking about clearinghouses is being replaced by sober concern, it is far less encouraging that the concern is leading to policies focused on individual institutions that do not pay adequate attention to how the system will respond.
In other words: Don’t build financial levees without giving very deep study how other financial currents will react to the levees during flood times.

