The Strange Idea of Negative Interest
This article addresses the role of demurrage (negative interest) in the design of new currencies. But it takes a roundabout route with diversions around the zero and negative interest rates being currently applied to fiat money; and a detour via positive interest which is itself a stranger idea than we have been led to believe. It suggests that demurrage is worth a place in the designer’s kitbag, but not for the reason normally postulated.
The basic idea of interest is simple. It’s a special type of rent. If we loan out something we have no immediate need for ourselves, it seems reasonable that the borrower should pay us rent for its use. So interest is a rent on money.
A fundamental problem with the rent rationale in general occurs when the ‘property’ concerned is a public good – a commons which has been enclosed – or where it has been secured by violence or some other unfair means. In that case we might feel a little aggrieved at having property we feel we should have a degree of proprietorship over sold or rented back to us. This is the way many people feel about water for example.
Another issue arises when the property owner has (and will have) no need for the property themselves and have acquired it only for its rental value. Seeking a store of value via investment is understandable but when the asset class created is a ‘stuff of life’ good, tensions are sure to arise because investors are affecting the price of essentials. The more they can corner the market the more they can increase the cost of basic living. This seems to be increasingly the case with housing.
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