The pursuit of self-interest can lead to market failure when there is a lack of trust. Where Hume and Nietzsche located the origin of trust in the capacity to make promises - debts conceived in terms of values – this article explores the origins of modern distrust and its concomitant pursuit of selfinterest. Examining the market economies of the 16th and 17th centuries in England, one finds these were characterised by a shortage of coins so had to rely effectively on trust. Wealth consisted largely of ‘credit’ or trustworthiness, for this was the basis for access to goods and services with a promise of later payment. As such, wealth was not a possession but a reputation, and the pursuit of reputation took precedence over the pursuit of possessions. Since default on a debt could easily spread by contagion, the basis for collective welfare was personal morality. The key question, then, is how this conception of credit came to be replaced by one equivalent to debt, given a precise value and time for repayment. It will be argued that in this context the best way to prove one’s creditworthiness was to pay on time with the debt issued by a sound institution such as the Bank of England or the Exchequer. The financial revolution in England had the effect of turning the pursuit of ‘credit’ into the pursuit of wealth, where debts assumed the money functions of means of payment, unit of account, and store of value. The result was a transformation of morality: pursuit of self-interest, in the form of an ability to pay in money, became the basis for personal morality, while money became the measure of valu
