How Did the Dollar Peg Fail in Asia?

In this paper, we have constructed a theoretical model in which the Asian firm maximizes its profit, competing with the Japanese and the U.S. firms in their markets. The duopoly model is used to determine export prices and volumes in response to the exchange rate fluctuations vis-à-vis the Japanese yen and the U.S. dollar. Then, the optimal basket weight that would minimize the fluctuation of the growth rate of trade balance was derived. These are the novel features of our model. The export price equation and export volume equation are estimated for several Asian countries for the sample period from 1981 to 1996. Results are generally reasonable. The optimal currency weights for the yen and the U.S. dollar are derived and compared with actual weights that had been adopted before the currency crisis of 1997. For all countries in the sample, it is shown that the optimal weight of the yen is significantly higher than the actual weight.J. Japan. Int. Econ.,Dec. 1998,12(4), pp. 256–304. Institute of Economic Research, Hitotsubashi University, Kunitachi, Tokyo 186, Japan; Department of Commerce, Hitotsubashi University, Kunitachi, Tokyo 186, Japan; Department of Commerce, Takachiho University, Suginami, Tokyo 168, Japan.Copyright 1998 Academic Press.Journal of Economic LiteratureClassification Numbers F31, F33, O11.     

Invoicing currency and the optimal basket peg for East Asia: Analysis using a new open economy macroeconomic model

An important characteristic of trade in Asia is that the US dollar is the dominant invoicing currency. This fact might have a consequence on the region's choice of the currency regime. To investigate this possibility, I develop a three country “new open economy macroeconomics” model that consists of East Asia, Japan, and the US. Assuming that East Asia pegs its currency to a basket of the other two's currencies, the optimal basket weights are derived numerically. It is shown that the weights under a realistic invoicing pattern are drastically different from those in the textbook case of “producer currency pricing.” J. Japanese Int. Economies 20 (4) (2006) 569–589.     

Stabilization of effective exchange rates under common currency basket systems

We investigate the extent to which a common currency basket peg would stabilize effective exchange rates of East Asian currencies. We use an AMU (Asian Monetary Unit), which is a weighted average of ASEAN10 plus 3 (Japan, China, and Korea) currencies, as a common currency basket to investigate the stabilization effects. We compare our results with another result on stabilization effects of the common G3 currency (the US dollar, the Japanese yen, and the euro) basket in the East Asian countries [Williamson, J., 2005, A currency basket for East Asia, not just China. In: Policy Briefs in International Economics, No. PB05-1. Institute for International Economics]. We obtained the following results: first, the AMU peg system would be more effective in reducing fluctuations of the effective exchange rates of East Asian currencies as a number of countries applied the AMU peg system increases in East Asia. Second, the AMU peg system would more effectively stabilize the effective exchange rates than a common G3 currency basket peg system for four (Indonesia, the Philippines, South Korea, and Thailand) of the seven countries. The results suggest that the AMU peg system would be useful for the East Asian countries whose trade weights on Japan are relatively higher than others. J. Japanese Int. Economies 20 (4) (2006) 590–611.     

The Exchange Rate Policy of the Euro: A Matter of Size?

This paper analyzes how country size affects exchange rate policy and volatility. A hump shaped relation between exchange rate variability and the size of countries is generated in the theoretical model: exchange rate variability increases with country size for small countries but then decreases for large countries. The paper finds that this theoretical prediction holds well for bilateral exchange rates of the OECD countries in the period between 1980 and 1995 as well as for a subsample of European exchange rates with respect to the dollar. The results suggest that the dollar/euro volability may be lower than the present dollar/DM volatility.J. Japan. Int. Econ., Dec. 1998,12(4), pp. 455–482. CERAS-ENPC, Graduate Institute of International Studies, and CEPR, 28 rue des Saints Pères, Paris 75007, France.Copyright 1998 Academic Press.Journal of Economic LiteratureClassification Numbers F33, F41, F42.     

The Euro as a Reserve Currency

This paper presents historical and econometric evidence that the euro will come to rival the dollar as a reserve currency only slowly. The fact that it pays for central banks to hold their foreign reserves in a currency that is widely used in international transactions creates a network externality that gives the dollar an incumbency advantage. In addition, creating a market with sufficient stability to be attractive to international investors requires continuous liquidity management and periodic lender-of-last-resort operations by the issuing central bank. That the Maastricht Treaty assumes a strong separation between monetary policy and prudential regulation consequently bodes ill for the euro's prospects as a reserve currency.J. Japan. Int. Econ., Dec. 1998,12(4), pp. 483–506. Department of Economics and Department of Political Science, University of California, Berkeley, California 94720.Copyright 1998 Academic Press.Journal of Economic LiteratureClassification Number F3.     

What Should the Weights of the Three Major Currencies be in a Common Currency Basket in East Asia?*

We consider what type of regional common currency should be introduced in East Asia in the future. The common currency basket is, in itself, more desirable as an anchor currency. In this paper we define two types of currency basket and investigate the long‐term sustainability of adopting a common currency basket in East Asia. From our empirical results, a larger weight (but less than 100 percent) for the US dollar in the common currency basket tends to make bilateral exchange rates among East Asian countries stable in the long run.     

International Price Linkage within a Region: The Case of East Asia

This paper investigates how “prices” in East Asian economies correlate with those in Japan and the United States. The analysis is particularly noteworthy because although the East Asian economies are geographically close to Japan, their currencies have been tied more closely to the U.S. dollar. In this paper, we analyze two different types of “prices”: overall price levels in terms of the same currency and relative prices among different commodities. We demonstrate that overall price levels in the East Asian economies are more closely related to those in the United States. However, the relative prices in East Asia, especially those in Taiwan and Korea, are more closely correlated with those in Japan. These price correlation patterns are in marked contrast with those in other regions.J. Japan. Int. Econ.December 1993,11(4), pp. 643–666. Faculty of Economics, The University of Tokyo, Tokyo, Japan; and Department of Economics, The University of British Columbia, Vancouver, Canada, and Graduate School of Economics, Hitotsubashi University, Japan.     

The Dollar Exposure of Japanese Companies

The bulk of Japanese exports and imports are denominated in U.S. dollars rather than Japan's local currency, the yen. The consequences of dollar invoicing depend importantly on the extent to which Japanese companies hedge their dollar exposures. If they fully hedge their dollar exposures, then the choice of invoicing currency will not influence the yen profits of Japanese companies. This paper examines the degree to which Japanese companies hedge by estimating their exposure to movements in the dollar. Using Japanese stock market data and an international version of the CAPM model I estimate the extent to which Japanese company returns are correlated with changes in the yen–dollar exchange rate. The results suggest many Japanese companies are indeed exposed to yen–dollar movements and that dollar appreciations generally are positively correlated with firm returns. Since over the period 1984 to 1995, the dollar depreciated by 36% relative to the yen, it follows that the values of Japanese companies fell as a consequence of their dollar exposure.J. Japan. Int. Econ.Dec. 1998,12(4), pp. 388–405. University of Michigan, Ann Arbor, Michigan 48109-1220.Copyright 1998 Academic Press.Journal of Economic LiteratureClassification Numbers F31, G12, F23.     

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.     

The Currency Denomination of World Trade after European Monetary Union

This paper addresses the question of which role the currencies of the three major economies in the world might play in global trade after European economic and monetary union. Based on historical data about trade flows and invoicing practices as well as “G-3” economies' inflation records, it is argued that, most likely, the U.S. dollar will maintain its dominant role in trade denomination for quite an extended period of time after the European changeover. From the data discussed, the euro will immediately take on the role of the second most important trade vehicle currency, well in advance of the Japanese yen. Due to network effects, the euro is likely to gradually expand its share in global trade invoicing thereafter, primarily at the expense of the dollar in Central and Eastern Europe, the Mediterranean, and, perhaps, also in Asia.J. Japan Int. Econ., Dec. 1998,12(4), pp. 424–454. London School of Economics, Financial Markets Group and CEPR, European Central Bank, DG Research, Kaiserstrasse 29, 60311 Frankfurt, Germany.Copyright 1998 Academic Press.Journal of Economic LiteratureClassification Numbers F19, F14, F33, F49, E41.     

全球经济失衡态势下的东亚地区资本流动

在全球经济失衡背景下,东亚地区的资本流动呈现出与以往完全不同的特征,一方面是私人资本不断流入东亚地区且结构均衡,另一方面是大量的资本又从官方储备以购买美国国债的渠道流出东亚地区。今后东亚地区的这种资本流动将受到官方外汇储备变动、美国利率的变化、美元贬值、东亚汇率及其制度的调整等因素的影响。     

Optimal Pegs for East Asian Currencies

It has been evidenced that the U.S. dollar is prominent in the exchange rate regimes of Asian countries. This paper shows that the relative stability of Asian exchange rates against the U.S. dollar until the 1997 crisis is not accounted for by the theory of optimum currency areas, in contradiction to the situation in Europe vis-à-vis the deutsche mark. An alternative framework is proposed where the absence of a yen bloc is explained by the mismatch between the country distribution of trade and the currency distribution of the debt. It is shown that the lack of cooperation makes Asian countries underweight the yen in their implicit basket pegs.J. Japan. Int. Econ., March 1999,13(1), pp. 44–60. University of Lille 2 (CADRE) and CEPII, 9 rue G. Pitard, 75015 Paris, France.Copyright 1999 Academic Press.Journal of Economic LiteratureClassification Numbers: F31, F33, F36.     

On the identification of de facto currency pegs

We describe an exchange rate peg on a dollar/euro/yen basket as an orthogonality condition for bilateral exchange rates vis-à-vis these currencies. This approach avoids the choice of a numeraire and allows simple testing on the composition of the peg. GMM estimation is performed before and after the 1997–1998 crises for up to 139 currencies. We find that the number of pegs has not diminished after the crises. Intermediate regimes, defined as de facto pegs which are not reported as hard pegs to the IMF, have been replaced by hard pegs (primarily as a consequence of the launch of the euro) while the proportion of free floats has not increased. The dollar remains the main anchor currency. J. Japanese Int. Economies 20 (1) (2006) 112–127.     

Real effects of common currencies in East Asia

Since the 1997 Asian currency crisis, new interest has emerged in the formation of a common currency area in East Asia. This paper provides estimates of trade and welfare effects of East Asian currency unions, using a micro-founded gravity model. Counter-factual experiments to assess the effects of various hypothetical currency arrangements for East Asia suggest that an East Asian currency union will double bilateral trade in the region, but the resulting welfare effects will be moderate. However, if Japan, a major trade partner for East Asia, is included in the union, welfare effects increase substantially. The evidence thus suggests that certain regional currency arrangements in East Asia will stimulate regional trade rigorously and can generate economically significant welfare gains.     

东亚汇率合作的现实选择——基于汇率动态性的考察

从理论上看,东亚地区汇率合作有多种形式可以选择,然而,合作选择受制于双边汇率动态性。本文通过东亚主要国家汇率相关性和锚货币的动态性考察,推导出现阶段东亚汇率合作的方案选择,即从非正式的单独钉住货币篮子入手,逐步过渡到正式的共同钉住区域内外货币组成的混合货币篮子,最终的方向是构建东亚共同的由区域内货币组成的货币篮子或者说亚洲货币单位(ACU)。     

The Long-Run Purchasing Power Parity for the Yen: Historical Overview

This paper examines the long-run behavior of the yen/dollar real exchange rate. Several series are spliced to compose long Japanese consumer and wholesale price indices, long U.S. consumer and wholesale price indices, and the yen/dollar exchange rate, from 1879 to 1995. The CPI-based real exchange rate tended to depreciate in the pre-WWII periods, but strongly appreciated in the post-WWII periods. The WPI-based real exchange rate did not show any trend in the pre-WWII periods, but appreciated moderately in the post-WWII periods. The unit root tests were not rejected for the CPI-based real exchange rate series, but some of them were rejected for the WPI-based real exchange rate series, suggesting mean reversion property only for the WPI-based series. The Balassa–Samuelson hypothesis to explain a drift and/or a trend in the real exchange rate series had only a weak support.J. Japan. Int. Econ.,December 1997,11(4), pp. 502–521. Institute of Economic Research, Hitotsubashi University, Naka 2-1, Kunitachi, Tokyo 186, Japan.     

Strong Currency and Weak Currency

This paper presents a two-country model in which two currencies compete with each other. There exists an equilibrium in which the two currencies with different rates of inflation circulate as media of exchange despite neither currency being required to be used for transactions. Taxes payable in local currency and asymmetric injection of fiat money by the government through purchases of a certain good generate demands even for the currency with a higher inflation rate. In such an equilibrium, the government that issues the currency with a lower rate of inflation collects seigniorage not only from its own residents but from the residents of the other country provided that the rate of inflation is positive. The strong currency in the sense of a low inflation rate becomes an international medium of exchange. Policy games, in which the two governments simultaneously choose and commit to tax rates and inflation rates, are also examined. We show, among other things, that the equilibrium rate of inflation is zero in this policy game. In other words, unlike a common argument, the rate of inflation does not go below zero. This result is due to the fact that a negative rate of inflation induces a negative amount of seigniorage andvice versa. Some alternative currency regimes are examined. Even for a country with a weak currency, abandonment of its currency leads to a lower level of welfare. Monetary unions are briefly discussed as well.J. Japan. Int. Econ., Dec. 199812(4), pp. 305–333. University of Tokyo, Tokyo, Japan; University of Tsukuba, Ibaraki, Japan.     

东亚货币合作研究文献综述

全球性金融危机的爆发再次助推了东亚地区货币合作的进程。本文详细梳理了东亚货币合作研究的线索,明确了东亚货币合作进一步的研究方向：从货币竞争和锚货币选择这个思路考察区域内核心货币（尤其是人民币）在汇率协调机制中发挥的作用,并对东亚汇率协调机制进行重估。同时,还需在新形势下从理论和实践层面探讨中国如何参与东亚货币合作以促进中国乃至东亚地区的繁荣和发展,为进一步推进东亚货币合作提供理论支持和政策依据。     

Should East Asia’s currencies be pegged to the yen? The role of invoice currency

Growing concern that a dollar peg exposes East Asian economies to fluctuations in the dollar–yen exchange rate has stimulated research on currency basket regimes as alternatives for these economies. However, existing studies have mostly ignored an important characteristic of East Asia, i.e., most of its international trade is invoiced in the U.S. dollars. This paper investigates how the preponderance of dollar invoicing affects optimal currency basket regimes for East Asian economies. I develop a three-country center-periphery sticky-price dynamic stochastic general equilibrium model for the analysis. The model is solved numerically by taking second-order approximations to the policy functions with the expected lifetime utility of households chosen as the welfare criterion. Contrary to the conjecture of existing literature, I show that predominance of dollar invoicing implies that the dollar should receive a smaller weight than suggested by bilateral trade shares between emerging markets in East Asia and the United States. The results hinge on the interaction of different degrees of pass-through implied by the choice of invoice currency and endogenous responses of monetary policies in the center countries.     

Restructuring East Asian exchange rate regimes

This paper investigated the degree of misalignment of the East Asian currencies against the U.S. dollar and against the Japanese yen under a de facto dollar-pegged exchange rate regime (January 1995 to May 1997). We found that overvaluation against the yen started in the Malaysian ringgit and the Philippine peso from January 1996 and the Thai baht from June 1996. Although the Indonesian rupiah and the Korean won against the yen were still undervalued in May 1997, degree of misalignment of both currencies narrowed from April 1995. Large withdrawal of Japanese claims after the financial crisis reduced Japanese bank lendings from $123.8 billion to $85.9 billion in end-June 1998. In 1998, Japanese Foreign Direct Investment (FDI) to East Asia fell as much as 44% from the previous year. In conclusion the paper stresses the importance of the stability in yen/dollar exchange rate to avoid large volatility in Japanese capital flow.