I NTERNATIONAL LIQUIDITY iS receiving a great deal of attention these days. Some students of the subject think there is too much of it and no likelihood of a shortage in the visible future; others think there soon may be too little of it. Moreover, some are satisfied that the present institutional arrangements for creating liquidity can gradually evolve to take care of future needs, while others dispute this and insist that a major overhaul is required. Most people, however, are simply confused by the assertions and counterassertions of the experts. This is not surprising, because some of the problems are very complex, even from a purely technical standpoint. To make matters worse, national and international political objectives of sovereign governments are intertwined with the technical considerations. And to complicate matters still further, a number of eminent economists have developed plans which are labeled with their names, and each of these men presumably hopes to go down in history as the principal author of whatever international currency reform finally is adopted; as a result, some of the most active discussions seem at times to be contests for historical glory rather than dispassionate and well balanced presentations of the issues. For example, the distinguished British publication, The Economist, in its May 29, 1965 issue, attempts to summarize the leading plans for international monetary reform in an article entitled "The Great Liquidity Debate." The article's subtitle is "Who's Been Borrowing My Plan?," and the introductory paragraph observes: "A series of speeches by a now familiar band of experts" . . . shows "that they are prepared to be commendably flexible-as long as the end product still bears their name." No wonder not only laymen but also many serious students of monetary affairs are confused by the welter of conflicting statements about the nature of the problems and the merits and weaknesses of the various solutions being proposed. What I shall try to do in this article is to sketch some of the issues, without adx ancing any plan of my own and without attempting to review each of the leading plans, in the hope that this broad and simplified approach will provide some helpful glimpses of the fundamental issues involved. Concern about international liquidity really represents concern about a well functioning international monetary system. A well functioning international monetary system may be defined as one which permits countries to deal with balance-of-payments deficits and surpluses without having to subject their domestic economies to abrupt swings in employment and prices, and also without having to resort to exchange controls, restrictionist or discriminatory trade practices, or internationally disruptive changes in their exchange rates. In appraising the present international monetary system, therefore, we must ask two questions, which are complementary to each other. First, does the system adequately provide for financing of imbalances in countries' international receipts and payments when these occur, and, second, does it adequately promote the elimination of such imbalances as promptly as is possible without disrupting international trade and capital movements, and without shattering the domestic economic objectives of consistently high levels of employment and reasonably stable prices? If the first test of a well functioning international monetary system is to be satisfied, the total volume of international reserves, together with the supply of available international credit and its distribution among countries, must always be adequate to permit countries to finance balance-of-payments deficits for a reasonable period of time, by one means or another. The important consideration is that deficit countries should not feel compelled to take precipitate measures to reduce their external payments or to increase their foreign exchange receipts -measures which either would wrench their domestic economy or would merely abruptly transmit the burden of adjustment to other countries, which in David L. Grove, formerly a vice president of the Federal Reserve Bank of San Francisco, is now a vice president and economist of Blyth & Co., Inc., an investment banking firm. Mr. Grove earned his A.B. degree at Harvard and holds a Master's in public administration, and a Ph.D. in economics.