THE outward guise assumed by the questions with which banking and currency policy is concerned changes from month to month and from year to year. Amid this flux, the theoretical apparatus which enables us to deal with these questions remains unaltered. In fact, the value of economics lies in its enabling us to recognize the true significance ofproblems, divested of their accidental trimmings. No very deep knowledge of economics is usually needed for grasping the immediate effects of a measure; but the task of economics is to foretell the remoter effects, and so to allow us to avoid such acts as attempt to remedy a present ill by sowing.
