ONE WORLD, ONE CURRENCY: EXPLORING THE ISSUES

Along with globalization of trade and finance has come a certain globalization of money. Some countries have adopted monetary unions and currency boards; others increasingly use international currencies in place of national monies. This article explores the idea of a global money—framed here as a voluntary, representative arrangement based on accepted principles for optimal conduct monetary policy. It argues that if the current pace of economic and financial integration continues, a global money may emerge that is better adapted to internationalization of production and exchange—although such a change may be a long time in coming. (JEL F330, F360, E420 )     

Deflationary policy under digital and fiat currency competition

I examine the implications of digital and fiat currency competition on optimal monetary policy according to the Friedman rule (a standard deflationary policy) in a Fernández-Villaverde and Sanches (2016) framework, with no search friction. Consistent with the existing literature, first, I find that monetary equilibrium under a purely private arrangement of digital currencies will not deliver a socially efficient allocation. Second, I place restrictions on the available supply of digital currencies and find that a socially efficient allocation is possible only if the upper bound on digital currency circulation is equal to the rate of time-preference, albeit some degree of government intervention is required to curb the profit-maximizing incentive of the miners. Third, I find that optimal monetary policy at the Friedman rule will be socially inefficient when digital currencies compete with government-issued fiat money. Finally, I show that the Friedman rule is a socially desirable policy only in a purely fiat monetary regime.     

VEHICLE CURRENCY*

Historically, the world economy has been dominated by a single currency accepted in the exchange of goods and assets among countries. In recent decades, the U.S. dollar has played this role. The dollar acts as a “vehicle currency” in the sense that agents in nondollar economies will generally engage in currency trade indirectly using the U.S. dollar instead of using direct bilateral trade among their own currencies. A vehicle currency is desirable when there are transactions costs of exchange. This article constructs a dynamic general equilibrium model of a vehicle currency. We explore the nature of the efficiency gains arising from a vehicle currency and show how it depends on the total number of currencies in existence, the size of the vehicle currency economy, and the monetary policy followed by the vehicle currency’s government. We find that there can be significant welfare gains to a vehicle currency in a system of many independent currencies. But these gains are asymmetrically weighted toward the residents of the vehicle currency country. The survival of a vehicle currency places natural limits on the monetary policy of the vehicle currency country.     

MONETARY POLICY IN ECONOMIES WITH LITTLE OR NO MONEY

Abstract. (1) Medium-of-exchange money will not entirely disappear in the foreseeable future. (2) In economies with no currency but settlement balances at the central bank, policy can be conducted much as at present by activist adjustment of overnight interest rates. (3) In economies without any money there can be no monetary policy. Liabilities of some official entity might serve as the medium of account, but there could be rivals. (4) A broad commodity-bundle monetary standard could be viable, even with a redemption medium, and there is scope for quantitative analysis of such systems. (5) The number of distinct national currencies may decline sharply.     

The Optimum Currency Area Puzzle

The theory of optimum currency areas, suggesting the redrawing of currency areas across countries or splitting of national money into several currencies, is at odds with the one-money-one-country pattern that has dominated monetary history for 26 centuries. This paper puts forward an equilibrium approach which, by stressing the influence of the border effect on intranational adjustment, solves the puzzle and analyzes the closely related issue of the viability of monetary unions and regional specialization.     

Limited participation,private money,and credit in a spatial model of money

Summary. The purpose of this paper is to explore the implications of private money issue for the effects of monetary policy, for optimal policy, and for the role of fiat money. A locational model is constructed which gives an explicit account of the role for money and credit, and for limited financial market participation. When private money issue is prohibited, there is a liquidity effect as the result of a money injection from the central bank, but this effect goes away when private money is permitted. Private money issue changes dramatically the nature of optimal monetary policy. With private money, fiat currency is no longer used in transactions involving goods, but currency and central bank reserves play an important part in the clearing and settlement of private money returned for redemption.Received: 5 May 2003, Revised: 1 December 2003JEL Classification Numbers: E4, E5.The author thanks seminar participants at the Federal Reserve Bank of Richmond and Duke University, conference participants at the Texas Monetary Conference at U.T. Austin, February 2002, and the Conference on Recent Developments in Money and Finance at Purdue University, May 2003, as well as Gabriele Camera, Ed Nosal, Will Roberds, and two anonymous referees for their helpful comments and suggestions.     

Hot Money Flows,Cycles in Primary Commodity Prices,and Financial Control in Developing Countries

Because the U.S. Federal Reserve’s monetary policy is at the center of the world dollar standard, it has a first-order impact on global financial stability. However, except during international crises, the Fed focuses on domestic American economic indicators and generally ignores collateral damage from its monetary policies on the rest of the world. Currently, ultra-low interest rates on short-term dollar assets ignite waves of hot money into Emerging Markets (EM) with convertible currencies. When each EM central bank intervenes to prevent its individual currency from appreciating, collectively they lose monetary control, inflate, and cause an upsurge in primary commodity prices internationally. These bubbles burst when some accident at the center, such as a banking crisis, causes a return of the hot money to the United States (and to other industrial countries) as commercial banks stop lending to foreign exchange speculators. World prices of primary products then collapse. African countries with exchange controls and less convertible currencies are not so attractive to currency speculators. Thus, they are less vulnerable than EM to the ebb and flow of hot money. However, African countries are more vulnerable to cycles in primary commodity prices because food is a greater proportion of their consumption, and—being less industrialized—they are more vulnerable to fluctuations in prices of their commodity exports. Supply-side shocks, such as a crop failure anywhere in the world, can affect the price of an individual commodity. But joint fluctuations in the prices of all primary products—minerals, energy, cereals, and so on—reflect monetary conditions in the world economy as determined by the ebb and flow of hot money from the United States, and increasingly from other industrial countries with near-zero interest rates.     

贸易结算货币的新选择:稳定的篮子货币——对“金砖五国”货币合作的探讨

文章研究"金砖五国"货币合作的可能形式,构建了稳定的篮子货币作为贸易结算货币,为货币合作提供政策建议。文章首先考察了汇率之间的关系,认为一种货币的加权几何平均汇率能够消除不同货币表示币值的差异,在此基础上构建了篮子货币指数;其次研究了篮子货币波动最小的货币权重的选取,通过最优化方法获得最优权重;最后模拟计算了"金砖五国"篮子货币的权重,并探讨了如何把篮子货币最优权重转化为具体的货币篮子,同时给出了篮子货币和各国货币之间的汇率关系。     

Attachment to a National Money: Evidence on Currency Holding at Different Levels of Development

Most governments issue and maintain a national money stock. Their reasons for doing so include national identity, deficit finance, and policy independence. Against this background, the authors examine agents’ attachment to national currencies as revealed in the pattern of currency holding across countries and over time. The econometric evidence suggests that economic theory can enhance our understanding of these patterns. In a sample of more than 130 countries from 1960 to 1998, the most defensible reduced‐form estimates impute some explanatory power to the various stages of financial development. Along with expected inflation and worldwide financial innovation, this factor provides a partial explanation of currency use around the world. Much variation in currency use across countries over time remains unexplained, however. This suggests that economists’ understanding of the attachment to national currencies is far from complete.     

The demand for money and the real exchange rate misalignments in emerging European countries: A nonlinear approach

This paper investigates the extent to which domestic and foreign money balances in emerging European countries are influenced by foreign exchange considerations. A well-specified and stable relationship between real money demand and the exchange rate can be perceived as an important part of a successful monetary policy. This study examines the long-run determinants of real exchange rates (RERs) associated with the behavioral equilibrium exchange rate (BEER) approach and identifies currency misalignments in these countries. The misalignment is later used to test the nonlinear behavior of the demand for money. The results indicate that the RER misalignments have a significant impact on domestic money demand. When the currencies are overvalued, there is a reduction in domestic money demand, and when they are undervalued, there is an increase in domestic money demand. Furthermore, it can be concluded that overvaluation causes an increase in foreign money demand indicating a shift of preference from domestic to foreign currency.     

Surplus liquidity,central bank losses and the use of reserve requirements in emerging markets

Since the turn of the millennium, stocks of foreign reserves held by central banks in many emerging markets and developing countries have exceeded currency in circulation. To steer money market rates, these central banks have been absorbing liquidity from, rather than providing it to, the banking sector in their regular monetary policy operations. When interest rates in countries with major reserve currencies are low, the yield on foreign reserves is low. A higher interest rate on liquidity‐absorbing operations may expose central banks to losses. Although a central bank is not a profit‐maximizing institution, central bank losses can undermine the independence of the central bank. Using data for a large panel of central banks, this paper provides some evidence that central banks tend to apply low‐remunerated reserve requirements when profitability is at stake.     

关于汇率理论与汇率政策研究的思考

汇率的决定与外汇市场供求、经常账户平衡、央行货币政策、相关资产价格、经济基本面、国民收入及国际收支账户等有着直接的或间接的关系。完善人民币汇率形成机制,要从外汇市场拓展到本外币政策深层次协调,从涉外经济拓展到内外经济协调发展,同时在新的汇率形成机制下对国际货币体系和主要货币的变化趋势进行系统的监测预测和分析研究。     

Central Bank Digital Currency: optimization of the currency system and its issuance design

Central Bank Digital Currency (CBDC) contributes to optimizing payment functions of fiat money, reducing reliance on payment services provided by the private sector, alleviating regulatory burdens and pressure on the central bank, and strengthening the authority of fiat money. Moreover, issuance of CBDC helps to address dilemmas of modern monetary policies, including inefficiencies in policy transmission, difficulties in countercyclical control, flow of currency away from the real economy to the virtual economy and inadequate management of policy expectations. This paper proposes a CBDC issuance framework based on forward contingencies. The incorporation of time, sector, and loan rate contingencies in the activation of CBDC will realize real-time transmission of monetary policy, enable targeted supply of money and prevent the currency from circulating beyond the real economy. The economic state contingency makes it possible to exercise countercyclical control of currency. The embedment of these contingencies also enables currency to perform the function of forward guidance.     

Market Structure, Efficiency and Rising Consolidation of the Banking Industry in the Euro Area

Four factors are fundamentally altering the financial landscape in the Euro Area: deregulation, further disintermediation provoked by the common currency and common monetary policy, technological advances and increased competition from non‐bank intermediaries. Faced with the combined pressures of these factors, banks are devising strategies to do business in this new environment. They respond by attempting to improve their efficiency and/or market power through consolidation and balance sheet restructuring. This article examines whether the ongoing process of consolidation should be rationalized on the basis of the benefits of economies of scale and scope or to the attempt of banks to tackle excess capacity problems. Empirical findings reveal a significant effect of efficiency measures on banking profitability indices. Also, we argue that further disintermediation caused by common currency and common monetary policy poses a threat to banks' profitability. Finally, these results have some implications for merger and antitrust policy as well as for supervisory and regulatory practices.     

MONETARISM AND THE USE OF MARKET PRICES AS MONETARY POLICY INDICATORS

Recently proposed strategies for employing market price indicators as guides to monetary policy embody many key propositions of monetarism. Moreover, market price advocates' prescribed policy instruments and operating procedures for conducting monetary policy are not inconsistent with a monetarist perspective and fully incorporate the incentive structure of the money creation process. The market price approach differs from monetarism in three key areas: the data employed to measure intermediate indicators, the environments in which the approach works, and the policy role of the dollar. More specifically, the market price approach employs data that are readily available in unrevised form and that make better use of limited information than do monetary or reserve data. The approach produces the same results as does a monetarist approach when money demand is stable, and it produces monetarists' desired stable price results when money demand is unstable. Finally, the approach embodies a policy role for the U.S. dollar and (implicitly) recognizes the policy implications of the dollar as a reserve currency.     

Carry trades and US monetary policy

I document that Federal Reserve expansionary monetary policy has a positive impact on the excess returns arising from currency carry trades. I show that expansive monetary surprises are associated with an increase in future real interest differentials between high interest rate currencies and the US dollar, which leads to higher capital flows toward those currencies and an increase in their returns. Since this increase is not fully compensated by a decrease in the returns from the short position in low interest rate currencies, unexpected monetary expansions in the US result in higher carry trade returns.     

Which Single Currency for Western Europe?

The Maastricht Treaty calls for a single European money in the third and final stage of European monetary integration. The purpose of this paper is to infer the preferred currency from the point of view of economic agents in each EMS country by ranking the realized distributions of returns from holding foreign currencies. These rankings are obtained using the notion of generalized stochastic dominance. The preferred currency varies with time and the portfolio considered. In all cases, the ECU is not supported as a likely dominant money.     

Bank behavior, incomplete interest rate pass-through, and the cost channel of monetary policy transmission

This paper employs a New Keynesian DSGE model to explore the role of banks within the cost channel of monetary policy transmission for shaping the interest rate pass-through from money market rates to loan rates. Banks extend loans to firms in an environment of monopolistic competition by setting their loan rates in a staggered way, which means that the adjustment of the aggregate loan rate to a monetary policy shock is sticky. We estimate the model for the euro area by adopting a minimum distance approach. Our findings exhibit that (i) financial costs are an important factor for price changes, (ii) frictions in the loan market have an effect on the propagation of monetary policy shocks as the pass-through from a change in money market rates to loan rates is incomplete, and (iii) the strength of the cost channel is mitigated as banks shelter firms from monetary policy shocks by smoothing loan rates.     

货币增速剪刀差与CPI相关性的实证研究

货币供应量作为我国的货币政策中介目标存在很多争议,但是现阶段依然具有不可替代的作用,在重视货币总量的同时,应分析货币结构的变化,实现对货币供应量中介目标的改良是一个现实选择。本文通过对2001年1月—2010年12月的宏观月度数据的研究,发现货币增速剪刀差与CPI之间存在着显著的正相关关系。在样本期内,货币增速剪刀差与通货膨胀之间互为格兰杰因果关系,货币增速剪刀差的变化体现为4期之后的CPI变化,当期货币增速剪刀差每增加一个单位则4个月之后的CPI上升0.049个单位。央行应将货币结构尤其是货币增速剪刀差作为货币供应量数量指标的补充,同时考虑对货币结构进行调控,以增强货币政策效用。     

Financial crises,exchange rate linkages and uncovered interest parity: Evidence from G7 markets

This paper examines the dynamic linkages among major exchange rates during the Global Financial Crisis and Eurozone Sovereign Debt Crisis. We extend the previous literature on volatility spillover linkages among the currencies by taking into account the uncovered interest-rate parity hypothesis for 2004–2015. The results indicate that the Canadian Dollar and Great British Pound were affected mainly by the US Dollar across the two crises due to strong financial and economic ties among the three economies, while the Japanese Yen shows evidence of a safe-haven currency. We also provide evidence of varying vulnerability of currencies to both crises, implying increased portfolio diversification benefits, since holding a portfolio with diverse currencies is less subject to systematic risk. These results show that the policy makers need to adopt a stricter form of monetary policy coordination among central banks, since the different vulnerability of currencies across turbulent periods reveals possible non-cooperative monetary policies.