Cherished myths fall victim to economic reality

The financial crisis continues to create victims. Not only people but also some of our most cherished ideas risk falling by the wayside. Take the hugely influential idea that financial markets are efficient. Its proponents told us that when financial markets were left free, they would work miracles. Savings would be channelled to the most promising investment projects, thereby boosting economic growth and welfare. In addition, these financial markets would spread risk around over a large number of participants, thereby lowering the risk of doing business, again boosting growth and welfare. In order to achieve these wonders, financial markets had to be freed from the shackles of government control.

The country that embodied these principles most was the US. Helped by the missionary zeal of successive American administrations and pushed by international financial institutions, country after country freed their financial markets from pernicious government controls, hoping to share in these economic wonders.

The credit crisis has destroyed the idea that unregulated financial markets always efficiently channel savings to the most promising investment projects. Millions of US citizens took on unsustainable debts, pushed around by bankers and other “debt merchants” who made a quick buck by disregarding risks. While this happened, the US monetary authorities marvelled at the creativity of financial capitalism. When the bust came, a large number of Americans who had been promised a new life in their beautiful homes were told to move out. This boom and bust cycle cannot have been an example of efficient channelling of savings into the most promising investment projects.

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There is a second idea that is likely to become the victim of the financial crisis. This is the idea found in macro­economic models, that individuals are supremely well-informed creatures. In these models that are now being used in central banks and universities, individuals understand the most complex intricacies of the world in which they live and they have no disagreement about this. All these individuals understand the same “truth”.

If we have learnt one thing from the credit crisis it is that individuals did not understand the “truth” and, it must be admitted, neither did economists. Individuals who sold the new financial instruments did not understand the risk embedded in these instruments, nor did the buyers. When the bubble started many interpreted the happy turn of affairs as permanent and took on massive levels of debt that turned out to be unsustainable. When the bubble burst, they did not understand what had happened and nor did most experts. Our world is one of a fundamental lack of understanding of the “truth”.