Zopa had a good write up in the Times on Saturday. Alongside the news that it stands out for offering solid returns in the current turmoil is news that the Treasury are taking an interest in its model to help with the problem of the blocked drain that is our credit market.
I have often put forward the view that Zopa is much more than a clever business idea – it works because it challenges the orthodox view of what money is (and fits with the way we use money in everyday life not abstract market models). Working through Geoffrey Ingham’s book, “The Nature of Money”, I was struck by a thought experiment carried out at the start of the last century where Wicksell, an orthodox economist who envisaged a thought experiment where you had two markets – one based on a pure cash economy the other a ‘pure credit economy’.
The commodity theory of money which underpins the orthodox economic way of thinking was unable to cope with a pure credit economy (which is a very prescient description of zopa) even as a logical possibility – a very familiar response to the original conception of the zopa concept.
In Wicksell’s thought experiment the borrowers and lenders bartered to produce what he called a “natural rate” of interest. This reflected the supply and demand for loans in the real economy. This has implications for the orthodox views of monetarism and the manipulation of ‘money rates’ of interest vs. the natural rate determined by the demand for capital in the real economy. Not least of which is the idea that ‘fixing’ the system will solve the long term problems of credit supply (and how it is distributed to individuals and businesses).
Arguably treating credit like a [consumer] commodity created tensions and contradictions in our society which eventually produced ‘money rates’ of interest (and costs of borrowing) which bore little relation to any market defined rate (one based on need / supply /demand etc). In Athens the ‘natural rate’ of interest was 12% - with small variations for individual deals – a rate that stayed the same for 500 years through boom, bust, war and peace. Confusing or blurring the distinction between cash money and credit money sits at the heart of the rupture in our banking system.
An addendum link on the zopa blog - it seems that the idea of the 'pure cash economy' may also fail under logical scrutiny!