Money market, a set of institutions, conventions, and practices, the aim of which is to facilitate the lending and borrowing of money on a short-term basis. The money market is, therefore, different from the capital market, which is concerned with medium- and long-term credit. The definition of money for money market purposes is not confined to bank notes but includes a range of assets that can be turned into cash at short notice, such as short-term government securities, bills of exchange, and bankers’ acceptances.
Every country with a monetary system of its own has to have some kind of market in which dealers in short-term credit can buy and sell. The need for such facilities arises in much the same way that a similar need does in connection with the distribution of any of the products of a diversified economy to their final users at the retail level. If the retailer is to provide reasonably adequate service to his customers, he must have active contacts with others who specialize in making or handling bulk quantities of whatever is his stock-in-trade. The money market is made up of specialized facilities of exactly this kind. It exists for the purpose of improving the ability of the retailers of financial services—commercial banks, savings institutions, investment houses, lending agencies, and even governments—to do their job. It has little if any contact with the individuals or firms who maintain accounts with these various retailers or purchase their securities or borrow from them.
The elemental functions of a money market must be performed in any kind of modern economy, even one that is largely planned or socialist, but the arrangements in socialist countries do not ordinarily take the form of a market. Money markets exist in countries that use market processes rather than planned allocations to distribute most of their primary resources among alternative uses. The general distinguishing feature of a money market is that it relies upon open competition among those who are bulk suppliers of funds at any particular time and among those seeking bulk funds, to work out the best practicable distribution of the existing total volume of such funds.
In their market transactions, those with bulk supplies of funds or demands for them, rely on groups of intermediaries who act as brokers or dealers. The characteristics of these middlemen, the services they perform, and their relationship to other parts of the financial mechanism vary widely from country to country. In many countries there is no single meeting place where the middlemen get together, yet in most countries the contacts among all participants are sufficiently open and free to assure each supplier or user of funds that he will get or pay a price that fairly reflects all of the influences (including his own) that are currently affecting the whole supply and the whole demand. In nearly all cases, moreover, the unifying force of competition is reflected at any given moment in a common price (that is, rate of interest) for similar transactions. Continuous fluctuations in the money market rates of interest result from changes in the pressure of available supplies of funds upon the market and in the pull of current demands upon the market.
Banks and the money market
Commercial banks are at the centre of most money markets, as both suppliers and users of funds, and in many markets a few large commercial banks serve also as middlemen. These banks have a unique place because it is their role to furnish an important part of the money supply. In some countries they do this by issuing their own notes, which circulate as part of the hand-to-hand currency. More often, however, it is checking accounts at commercial banks that constitute the major part of the country’s money supply. In either case, the outstanding supply of bank money is in continual circulation, and any given bank may at any time have more funds coming in than going out, while at another time the outflow may be the larger. It is through the facilities of the money market that these net excesses and shortages are redistributed, so that the banking system as a whole can at all times provide the means of payment required for carrying on each country’s business.
In the course of issuing money the commercial banks also actually create it by expanding their deposits, but they are not at liberty to create all that they may wish whenever they wish, for the total is limited by the volume of bank reserves and by the prevailing ratio between these reserves and bank deposits—a ratio that is set by law, regulation, or custom. The volume of reserves is controlled and varied by the central bank (such as the Bank of England, the European Central Bank, or the Federal Reserve System in the U.S.), which is usually a governmental institution, is always charged with governmental duties, and almost invariably carries out a major part of its operations in the money market.