As the Senate finalizes its financial reform legislation, a consensus is developing that if we could just get derivatives traded through a centralized clearinghouse we could avoid a financial crisis like the one we just went through.

This is false. Clearinghouses provide efficiencies in transparency and trading, but they are no cure-all. They can even exacerbate problems in a financial crisis.

If I agree to sell you a product next month through a clearinghouse, I’ll deliver the product to the clearinghouse and you’ll deliver the cash to the clearinghouse on the due date. Let’s say we both have many trades going through the clearinghouse and we’ve posted collateral to cover any single trade that fails. This is more efficient than each of us posting collateral privately for each trade. Moreover, we’re not worried that I won’t deliver or you won’t pay because we both count on the clearinghouse to deliver and pay up if one of us doesn’t.

This clearing system makes trading more efficient. If you default, the cost is spread through the clearinghouse so I don’t get hurt severely. And if the clearinghouse has enough collateral from you, there’s no loss to spread. But there’s also a potential downside: The clearinghouse reduces our incentives to worry about counterparty risk. Your business might collapse before you need to pay up, but that’s not my problem because the clearinghouse pays me anyway. The clearinghouse weakens private market discipline.

(more…)