OF all branches of economic science, that part which relates to money and credit has probably the longest history and the most extensive literature. The elementary truths of the Quantity Theory were established at a time when speculation on other types of economic problem had hardly yet begun. By the middle of the nineteenth century when, in the general theory of value, a satis- factory statical system had not yet been established, the pamphlet literature of money and banking was tackling, often with marked success, many of the subtler problems of economic dynamics. At the present day, with all our differences, there is no part of economic theory which we.
