Optimal currency shares in international reserves: The impact of the euro and the prospects for the dollar

Foreign exchange reserve accumulation has risen dramatically in recent years. The introduction of the euro, greater liquidity in other major currencies, and the rising current account deficits and external debt of the United States have increased the pressure on central banks to diversify away from the US dollar. A major portfolio shift would significantly affect exchange rates and the status of the dollar as the dominant international currency. We develop a dynamic mean-variance optimization framework with portfolio rebalancing costs to estimate optimal portfolio weights among the main international currencies. Making various assumptions on expected currency returns and the variance–covariance structure, we assess how the euro has changed this allocation. We then perform simulations for the optimal currency allocations of four large emerging market countries (Brazil, Russia, India and China), adding constraints that reflect a central bank's desire to hold a sizable portion of its portfolio in the currencies of its peg, its foreign debt and its international trade. Our main results are: (i) The optimizer can match the large share of the US dollar in reserves, when the dollar is the reference (risk-free) currency. (ii) The optimum portfolios show a much lower weight for the euro than is observed. This suggests that the euro may already enjoy an enhanced role as an international reserve currency (“punching above its weight”). (iii) Growth in issuance of euro-denominated securities, a rise in euro zone trade with key emerging markets, and increased use of the euro as a currency peg, would all work towards raising the optimal euro shares, with the last factor being quantitatively the most important. J. Japanese Int. Economies 20 (4) (2006) 508–547.     

Monetary policy under a liquidity trap: Simulation evidence for the euro area

In this paper, we analyze the conduct of monetary policy under a zero nominal interest-rate bound (hereafter ZIB) in a model economy of the euro area, namely that of the Area Wide Model. The aggregate euro-area economy is modeled to have relatively sluggish adjustment properties and a private sector with mainly backward-looking expectations. For a given ZIB benchmark, we consider variations in the monetary-policy reaction function to minimize the macro-economic consequences of such a deflationary regime. We rank the effectiveness of these remedial policies using a number of metrics and relate our results to features and properties of the model economy. J. Japanese Int. Economies 20 (3) (2006) 338–363.     

Poland and the euro zone enlargement: Monetary policy,ERM II,and other issues

In this paper, Poland's preparations to introduce the euro and discussions surrounding them are briefly analyzed. Its first part deals with legal and macroeconomic developments before Poland's accession to the EU in May 2004. The second part considers Poland's official position and possible future scenarios. The main conclusions are twofold. Firstly, it is argued that after finishing successfully the disinflation process, Poland's monetary integration is above all subject to fiscal and exchange rate developments. In both cases, they are a function of the economy's structural changes. Secondly, as a consequence, fulfilling the Maastricht Treaty nominal convergence criteria by Poland will imply enough degree of real convergence for its successful participation in the euro zone. The opinions expressed in the paper are of the author and should not be attributed to any institution he is working for. He would like to expresshis gratitude to Witold Grostal and Robert Woreta for providing the graphs. Helpful comments were made by Michal Brzoza-Brzezina, Tomasz Chmielewski, and by Eduard Hochreiter. Language assistance was provided by Barton D. Raven. Any remaining errors are solely the author's responsibility.     

The euro and its consequences: What makes a currency strong?

The creation of the Economic and Monetary Union (EMU) and the introduction of the euro was one of the great events in economic history after World War II. The basic attractiveness of the euro is its large and expanding transaction size and the independent central bank which pursues price stability as its primary goal. The basic strength of the dollar is the hysteresis effect based on economies of scale and network externalities. The conclusion in the paper is that at present the hysteresis effect dominates the sheer size effect and the dollar remains the key vehicle currency while the euro has established itself as the second most widely used currency in the world. The euro depreciated against the dollar in the first three years after its introduction. In the paper the euro weakness is explained by the positive growth differential in favor of the U.S. economy caused by the advance in IC-technology and a pick-up in total factor productivity. In the medium run, the outlook for the euro is favorable. The U.S. current account deficit is unsustainable and improvements require a substantial depreciation of the dollar.Distinguished Address presented at the Fifty-Fourth International Atlantic Economic Conference, Washington D.C., October 10–13, 2002.     

Monetary policy and EMU enlargement: Issues regarding ERM II and adoption of the euro in Estonia

The aim of the paper is to give an overview of the issues related to Estonia's entry into ERM II. For that purpose the article describes the official position of the Estonian authorities regarding entry into ERM II and the adoption of the euro, explains the rationale for early entry into ERM II, and presents the reasons for maintaining the currency board arrangement until full membership in EMU. Also, the challenges of the adoption of the euro are discussed. The article concludes that early entry into ERM II is appropriate as the perceived costs—short-term costs of fiscal consolidation and the cost of giving up independent monetary policy and flexible exchange rates as stabilization tools—are practically non-existent in Estonia. The paper argues that the high level of exchange rate stability and nominal convergence, relatively high flexibility of the economy, and integration with the euro area support the rationale for maintaining the currency board arrangement and adopting the euro early.     

Monetary policy in the euro area: Was it too tight in the 1990s?

This paper studies the monetary policy in the euro area. An important question concerning the euro area is whether the monetary policy has been too tight in the 1990s and in turn, caused the high unemployment rates, in contrast to the economic prosperity and low unemployment rate of the U.S. Therefore, the authors explore what would have happened to the euro economy if the Central Banks had followed either the fixed or time-varying monetary policy rule of the U.S. The paper does find that the European central banks and then later the ECB overreacted to past inflation pressures.     

Crisis of the euro zone and prospects of the euro

This paper analyzes problems of the eurozone, which are aggravated by the crisis. It proposes architectural transformations of the European monetary system targeted at combating the crisis and promoting economic growth and employment in today’s structurally inhomogeneous Europe.     

Will the role of the dollar as the international reserve currency be challenged?

The actual role of the US Dollar as the international reserve currency is an essential part of a financial architecture, which was conceived after World War II. Since then the world-wide economic, financial and political landscape has fundamentally changed. The article describes through which mechanisms the actual financial architecture will be challenged and what will be the consequences and occasional outcome.     

Switzerland and the euro

Switzerland is not a member of the European Union and, therefore, does not belong to the euro area. Nevertheless, the exchange rate of the Swiss franc against the euro has remained fairly stable. This stability does not imply that the Swiss National Bank pegs the exchange rate to the euro. On the contrary, the Swiss National Bank continues to pursue an autonomous monetary policy since monetary autonomy conveys various benefits to the Swiss economy.     

Britain and the euro

Britain's possible entry into the Eurozone has proved highly controversial, both on economic and political grounds. The British government has set up a series of tests to be satisfied before entry. Besides being vaguely defined, these tests are time dependent. This paper attempts to evaluate the case for British entry on more general Optimal Currency Area criteria, and argues that the failure of some of these criteria would provide a logical explanation of the British reluctance to join.     

迪拜利空 美元利好

迪拜债务危机对欧美的影响截然不同,欧元受挫,但美元强势反弹。有人说,迪拜危机是高盛和奥巴马的国际阴谋。     

农产品国际贸易争端及其影响因素的实证研究

本文以世贸组织成立以来诉诸WTO争端解决机构(DSB)的农产品争端为主要研究对象,运用Logistic回归模型对农产品贸易争端发生的影响因素进行了实证研究。结果表明,农业资源禀赋特征、国家经济发展水平(即国家经济实力的差异)、国家农业有效政治力量的不同,对农产品贸易争端的发生有显著影响。     

Monetary Unions in Historical Perspective: What Future for the Euro in the International Financial System

This paper discusses the introduction of the euro in the present international monetary context. European Monetary Union is not only an economic concept but also primarily a political one. Based on past experience, two aspects of monetary union seem essential: the nature of the future European Central Bank and the necessity that monetary union is implemented with a fiscal union. The euro's success on world markets, as a dollar substitute, depends on monetary authorities' credibility in targeting low-inflation, and on fiscal authorities' reputation. A central bank that does not respond to a political authority can cause social difficulties, especially if social policies are left in the hands of single countries and fiscal transfers, to support these policies, are not allowed     

The euro and the monetary union

The Eurosystem established a single monetary policy and has the three guiding principles of independence, transparency, and decentralization. These three principles helped to successfully formulate and implement the euro on 1 January 2002. Major criticisms against establishment of the euro failed to come true and, in fact, the euro has quickly become a major currency in the world. Challenges facing continued success of the euro include structural reforms, financial stability, and the accession of new members to the EU and EMU. TheRobert A. Mundell Distinguished Address presented at the Fifty-Third International Atlantic Economic Conference, March 13–17, 2002, Paris, France.     

Overcoming the euro crisis and prospects for a political union

The euro crisis and a new debate about immigration in Europe have undermined support for the EU while the unsolved Greek debt problems as well as the ECB’s quantitative easing policy have raised new crucial policy issues. It is necessary to identify the key issues of Eurozone stabilization and to clarify the economic benefits from monetary integration. As regards the economic welfare analysis of the euro, the new model presented shows the benefits of the euro’s reserve currency position, namely in the framework of a neoclassical growth model with seigniorage based on international reserve holdings. Discounted benefits are about 10,000 € per capita in a stable Euro area. Thus the benefits are bigger than often considered, at the same time one may raise the question of whether the existing institutional setting of the Eurozone is sufficient for achieving long-term stability and prosperity. As regards the envisaged third rescue package for Greece it is emphasized that a haircut of public creditors along with adoption of a Greek capital levy plus privatization efforts are required to achieve debt sustainability and growth. The traditional interpretation of subsidiarity in the EU is found to be misleading and the vertical division of politics is destabilizing.