The emergence of the euro as an international currency

Summary Euro vs dollar Will the euro replace the dollar as the world currency?Will and should the euro become an international currency? Previous work has noted that measuring size by GDP, role in international trade or even financial markets, Europe matches the USA. On these grounds, the euro is expected to challenge the dollar's supremacy. Cost-benefit analyses have looked at seigniorage, benefits for home financial institutions, relaxation of the external constraint, influence on international institutions, effects on macroeconomic policy co-ordination, and the wider consequences of exercising or sharing ‘currency hegemony’. This paper revisits these issues with a new framework that stresses the role of financial asset markets and uses new data to evaluate scenarios. As euro securities markets become deeper and more liquid and transaction costs fall, euro assets will become more attractive, and the use of the euro as a vehicle currency in trade will expand; the asset and trade effects interact. A welfare analysis reveals potential benefits for the euro area of the same order of magnitude as international seigniorage — at the cost of the USA and the ‘Asian bloc’. If policy-makers wish to promote the international role of the euro, they should focus their efforts on integrating the European capital markets: increasing their liquidity, breadth and depth. Here both (de)regulation and various aspects of policy harmonization across Europe will be important; so too will private market initiatives (e.g., in establishing benchmark interest rates and securities).— Richard Portes and Hélène Rey