What economists need to know about modern money
Wednesday, July 4, 2012/
One of the financial system’s chief roles is to provide credit for worthy investments. Some very deep changes are happening to this system – changes that surprisingly few people are aware of. Here’s a quick sketch of the modern credit creation and a look at the deep changes are that are affecting it – what we call ‘other deleveraging’.
Modern credit creation without central bank reserves
In the simple textbook view, savers deposit their money with banks and banks make loans to investors (Mankiw 2010). The textbook view, however, is no longer a sufficient description of the credit creation process. A great deal of credit is created through so-called ‘collateral chains’.
We start from two principles: credit creation is money creation, and short-term credit is generally extended by private agents against collateral. Money creation and collateral are thus joined at the hip, so to speak. In the traditional money creation process, collateral consists of central bank reserves; in the modern private money creation process, collateral is in the eye of the beholder. Here is an example.
A Hong Kong hedge fund may get financing from UBS secured by collateral pledged to the UBS bank’s UK affiliate – say, Indonesian bonds. Naturally, there will be a haircut on the pledged collateral (ie each borrower, the hedge fund in this example, will have to pledge more than $1 of collateral for each $1 of credit).
These bonds are ‘pledged collateral’ as far as UBS is concerned and under modern legal practices, they can be ‘reused’. This is the part that may strike non-specialists as novel; collateral that backs one loan can in turn be used as collateral against further loans, so the same underlying asset ends up as securing loans worth multiples of its value.
Of course the re-pledging cannot go on forever as haircuts progressively reduce the credit-raising potential of the underlying asset, but ultimately, several lenders are counting on the underlying assets as backup in case things go wrong.
To take an example of re-pledging, there may be demand for the Indonesia bonds from a pension fund in Chile. As since these credit-for-collateral deals are intermediated by the large global banks, the demand and supply can meet only if UBS trusts the Chilean pension fund’s global bank, say Santander as a reliable counterparty till the tenor of the onward pledge.
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