Risks and returns in international currency futures

Conclusion This paper analyzed the risk/return level of international currency futures traded on International Monetary Market of Chicago during 1972–1977 period. The empirical results indicate that relative risk and returns for each currency future studied are both close to zero during the sample period. The fact that the beta value for currency futures is close to zero implies its returns are uncorrelated with the market portfolio. Therefore, investors can reduce the risk level of their total portfolio significantly by adding currency futures.     

基于真实收益率的中国外汇储备最优币种结构分析

本文利用Markowitz提出的资产组合理论(Markowitz,1952),结合中国外汇储备结构的具体情况,根据经济实力、币值稳定性和交易匹配三大原则,摒弃含有诸多弊端的、单纯以美元计价的外汇储备收益率,改为采用以商品篮子衡量的外汇储备真实收益率作为期望收益率,利用二次规划工具求出了以4种外汇储备最优资产组合的风险有效前沿,测算出我国外汇储备最优币种结构,并给出相应建议,以期实现外汇储备保值增值的目标。     

Responding to a Monetary Superpower: Investigating the Behavioral Spillovers of U.S. Monetary Policy

Between 2002 and 2006, the Federal Reserve set interest rates significantly below the rates suggested by well-known monetary policy rules. There is a growing body of research suggesting that this helped fuel an excess of liquidity in the U.S. that contributed to the 2008 worldwide financial crash. It is less well known that a number of other central banks also lowered interest rates during this period. An important question, then, is what role the Federal Reserve played in influencing other central banks to alter their own monetary policies, which could have magnified the Fed’s actions in creating global liquidity. This paper addresses the issue by showing how spillovers in central bank behavior occur in theoretical rational expectations models. It then establishes empirically how U.S. monetary policy actions affect the actions of other major central banks, particularly in terms of interest rates and currency interventions. The models and data suggest that the U.S. lowering its policy rate, either in general or in reference to a monetary policy rule, influences other central banks to lower their own policy rates and intervene in currency markets, even when controlling for worldwide macroeconomic trends. It thus appears that U.S. actions were a factor in the worldwide lowering of interest rates and the increase in currency reserves in the early 2000s that may have contributed to the subsequent global liquidity boom.     

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.     

本币升值影响外汇储备的实证分析:2003～2007

本文以2003～2007年13个国家为研究对象,研究了不同国家本币升值对外汇储备的影响。面板数据的实证结果表明,汇率波动在一定程度上决定了一国外汇储备的规模,本币升值是导致2002年以后新兴市场国家外汇储备快速增长的重要因素,本币升值幅度与外汇储备的增幅成反比。我们认为,外汇储备管理应从控制供给入手,有效控制外汇储备规模。而央行减少对汇率的干预,并逐步推进人民币国际化是有效降低过多外汇储备的重要手段。     

Free or central banking? Liquidity and financial deepening in Sweden, 1834-1913

During Sweden’s nineteenth-century modernization, Enskilda banks contributed to economic expansion and integration by providing generally accepted means of payment beyond what would have been possible for the central bank, the Riksbank. The Riksbank was constrained by specie-convertibility requirements for Sweden’s currency. Contrary to previous arguments, however, the Enskilda banks did not operate according to free banking theory. The Enskilda banks held Riksbank notes instead of specie as base-money reserves. This arrangement led to a higher supply of formal liquidity than what would have been the case with either a free banking system or a pure deposit-based commercial banking system. The consequence for Sweden was a rapid rate of monetization and financial deepening.     

The dollar as an official reserve currency under EMU

This article analyzes official reserve-holding behavior in EU countries to assess the effect EMU might have on holdings of dollar reserves. Based on earlier research and new estimates, a wide range of projections is presented for the effect of EMU on the overall demand for reserves and their currency composition. It is argued that official dollar holdings could decline on the order of 35% or more from current dollar holdings, although the range of uncertainty is quite large. The contributions of country-specific factors appear to swamp the systematic components that had been isolated in earlier research.     

Monetary policy transmission through the bank lending channel in Thailand

This paper investigates the strength of the bank lending channel in the transmission of monetary policy in Thailand. Bank behavior is captured by quarterly balance sheet data for ten commercial banks of diverse size for the period 2007-2016. Based on a flexible form profit function, bank supply and demand equations are estimated that capture lending and funding choices. The estimation results are used to derive time-dependent supply and demand elasticities which are then combined with estimates of pass-through from the policy rate to retail rates to simulate the dynamic impact of a monetary tightening on bank portfolio allocations. Due to pass-through differentials among retail interest rates, an increase in the policy rate is shown to raise the cost of loan-production relative to the return on loans, thereby motivating banks to contract their lending. Small banks show a greater degree of loan contraction than large banks because large banks are better able to fund continued lending through debt issuance. Because the Thai economy relies heavily on bank loans, these findings suggest that the bank lending channel is an important conduit for the transmission of monetary policy in Thailand.     

Twin Banking and Currency Crises and Monetary Policy

Currency crises are found to be strongly associated with banking crises. This paper constructs a twin banking and currency crisis model by introducing the banking sector into the currency crisis model and examining the case in which the exchange rate risk is located in the banking system. The model shows that an unanticipated shock caused by the shift of investors’ expectations and/or a negative productivity shock can trigger a twin banking and currency crisis. To achieve both financial stability and economic stability, the central bank uses multiple monetary policy instruments. In contrast to the conventional policy recommendation in response to a currency crisis, i.e., interest rate hike, we find that when the exchange rate risk is located in the banking sector, the monetary policy option to prevent a twin crisis is to lower the policy interest rate and the reserve requirement ratio and raise the interest rate on reserves. Our results show that the location of the exchange rate risk matters for the choice of an appropriate monetary policy response during a crisis.     

加强中央银行独立性的重要意义--以日本为实例的分析

以日本为实例的分析表明,如果一国的中央银行缺乏应有的独立性,一般说来并不会像“时间非一致性”理论所分析的那样,会促使政府反反复复地背弃维护物价稳定的承诺,去有意制造通货膨胀,也不会像政治商业周期理论所分析的那样,会引发政府为谋求连任而周期性地运用货币政策愚弄选民。部分西方学者以通货膨胀率的讷氏来分析是否应该加强中央银行独立性的观点是极其片面的。为了使货币政策选择免受个别政治家或某届政府不合理的干预,避免国际压力对货币政策运营产生错误影响,使货币政策真正起到稳定经济运行的作用,必须赋予中央银行以充分的独立性。     

Central Bank Intervention and Heterogeneous Exchange Rate Expectations: Evidence from the Daily DEM/US-Dollar Exchange Rate

In this paper we propose a generalisation of the noise trader transmission mechanism to examine the impact of central bank intervention on exchange rates. Within a heterogeneous expectation exchange rate model intervention operations are supposed to provide support for chartist or fundamentalist forecasts, which forces portfolio managers to adjust their foreign currency positions. The empirical examination of the hypothesis is done by applying a Markov regime-switching approach to daily DEM/US-dollar exchange rates and intervention data of the Deutsche Bundesbank and the Federal Reserve from 1979 to 1992. It is shown that chartists profits rose whenever these central banks intervened on the foreign exchange market. This is not true for those who follow a fundamentalist approach.JEL Classification Numbers: F31, C32, E58, G15     

日元国际储备地位变迁对人民币国际化的启示

20世纪70年代,日元曾迅速赶上英镑,成为世界第三大储备货币,而21世纪初日元的储备地位却被英镑悄然越过;尽管日本的GDP长期高于德国,但日元在国际储备中的比例一直低于马克。数据分析表明,日元和英镑的储备地位相对变化源于币值的变动;而日元和马克储备地位差别源于商品与劳务进口总额的差别。中国相应参数的比较暗示：人民币有可能在实现自由兑换之前成为世界第三储备货币。     

The determination and consequences of international liquidity

Summary In the 20 years since 1969, international reserves have shown considerable increases, that seem to be far in excess of any long-term global need. This was a consequence of the prominent role that the dollar continued to play in the monetary system, which made it easy for the United States to finance balance of payments deficits in its own currency, increasing the amount of dollars in reserves. In addition the Eurodollar market made international reserves to some extent demand/determined: there was a very elastic supply of liquidity in this market. These developments in international reserves have inflationary consequences. To prevent such consequences in the future, central banks should set up a systematic surveillance system for international liquidity together with the IMF and BIS. An essential instrument in this context would be for the United States to finance its balance of payments deficits in foreign currencies in world capital markets.Keynote speech for the Foundation Robert Triffin Szirak on 17 November 1994 in Brussels.     

Post-crisis monetary and exchange rate policies in Indonesia,Malaysia and Thailands

This paper surveys the post-crisis monetary and exchange rate policies of Indonesia, Thailand and Malaysia. Malaysia has pegged the ringgit while Indonesia and Thailand have adopted heavily managed exchange rates. Under their IMF programs, Thailand and Indonesia set base money targets, but Thailand has moved, and Indonesia is now moving, to inflation targeting, using interest rates as the short-term instrument. Malaysia also sets interest rates. The ability of the three central banks to set interest rates and also pursue an exchange rate target with an interest rate target has been bolstered by restrictions on the internationalisation of the domestic currency. The three central banks have also had to sterilise the monetary effects of their foreign exchange interventions. It is argued that inflation targeting is now a good policy choice, but that a more freely floating exchange rate would be better than sterilisation of balance of payments surpluses or deficits.     

Comparing Exchange Market Pressure across Five African Countries

This paper compares the credibility of exchange rate arrangements for the five African countries which are members of the Community of Portuguese Speaking Countries and will be referred to as Afro-Luso. Our working hypothesis is that credibility necessarily implies low mean exchange market pressure (EMP), low EMP conditional volatility and low-severity EMP crises under financial-market integration. In addition, economic fundamentals must account for EMP dynamics. We also seek evidence of a risk–return relationship for mean EMP and of “bad news” (negative shocks) having a greater impact on EMP volatility than “good news” (positive shocks). Using our econometric models, we are able to rank Afro-Luso countries’ conditional volatility in ordinal terms. Our main conclusion is that countries with currency pegs, such as Guinea-Bissau (GB) and Cape Verde (CV), clearly have lower volatility when compared to those with managed floats and are therefore more credible. Moreover, EMP crises episodes under pegs are much less severe. We find that economic fundamentals correctly account for mean EMP in all countries and that the risk–return relationship is much more favourable for investors under currency pegs, as the increase in volatility is lower for the same rate of return. The exception to this finding is Mozambique (MOZ), which apparently has a risk–return profile akin to that enjoyed by countries with pegs. A plausible reason is that MOZ has the only managed float in our sample implementing monetary and exchange rate policy within the confines of an IMF framework, which establishes floors for international reserves and ceilings for the central bank’s net domestic assets. This intuition needs to be tested, however. EMP conditional volatility, meanwhile, is generally driven by changes in domestic credit (lowers it) and foreign reserve changes (raises it). The first effect is more pronounced under currency pegs, but also under MOZ’s managed float. “Bad news” increases volatility more that “good news” only in the case of CV’s currency peg, which we take to be another sign of its credibility. A few striking cross-country comparisons also emerge in our analysis. Among countries with managed floats, Angola (ANG) has the most severe EMP crises, MOZ the least severe and São Tomé &; Príncipe (STP) lies between the two extremes but closer to MOZ.     

Exchange rate exposure and risk management: The case of Japanese exporting firms

This paper investigates the relationship between Japanese firms’ exposure to the exchange rate risk and their risk management. Following Dominguez (1998) and others, we first estimate the firms’ exposure to the exchange rate risk by regressing their stock prices on the exchange rate and the market portfolio. We next investigate possible influences of various risk management measures on the firms’ foreign exchange exposure. Risk management variables include financial and operational hedging, the invoice currency choice, and the price revision strategy (pass-through) of 227 listed firms in 2009, which were collected from a questionnaire survey of Japanese firms listed in the Tokyo Stock Exchange. Our main findings are as follows: First, firms with greater dependency on sales in foreign markets have greater foreign exchange exposure, judged by the market. Second, the higher the US dollar invoicing share, the greater the foreign exchange exposure is, which can be reduced by both financial and operational hedging. Third, yen invoicing reduces foreign exchange exposure. These findings indicate that Japanese firms use a combination of risk management tools to mitigate the degree of exchange rate risk.     

Exchange-rate arrangements and financial integration in East Asia: on a collision course?

Financial integration in East Asia is actively being pursued and will in due course lead to substantial mobility of capital between economies in the region. Plans for monetary cooperation as a prelude to monetary integration and ultimately monetary unification are also proposed. These plans often suggest that central banks should adopt some form of common exchange rate policy in the transition period towards full monetary union. This paper argues that this is a dangerous path in the context of highly integrated financial markets. An alternative approach is proposed where independent central banks coordinate their monetary policies through the adoption of common objectives and by building an appropriate institutional framework. When this coordination process has progressed to the point where interest rate developments are similar across the region, and if in the meantime the required institutional infrastructure has been build, the next step towards monetary unification can be taken among those central banks that so desire. The claim is that this transition path is likely to be robust and will limit the risk of currency crises.     

The costs and benefits of exchange rate protection in China

From 2002 to 2011, China ran large surpluses in both the current and capital accounts of its balance of payments, which the People's Bank of China (PBOC) purchased and held at official foreign reserves to avoid nominal appreciation of the currency. Concurrently, with its massive purchases of foreign exchange, the PBOC compelled commercial banks to buy PBOC ‘sterilisation bonds’ and raised commercial bank reserve requirement ratios to avoid monetisation of its foreign exchange purchases and concomitant upward pressure on the price level (that is, real appreciation of the currency). Sterilising foreign exchange intervention, as China did for a decade, constitutes a violation of the implicit rules of a fixed exchange rate regime and as such can be seen as a mercantilist policy of manipulating the real exchange rate to gain, or avoid losing, international price competitiveness—what Corden (1981) termed ‘exchange rate protection’. This paper sets out the simple theory of the costs and benefits of exchange rate protection and provides back‐of‐the‐envelope estimates of their magnitude in China in the 2000s. It also explores the ‘other side of the story’, the decline in US manufacturing employment in the 2000s, which recent literature attributes to a ‘China Trade Shock’ that allegedly resulted from the US granting Permanent Normal Trade Relations (PNTR) to China in 2001. Here, it is argued that the so‐called China Trade Shock resulted from China's sterilised intervention policy, not the granting of PNTR. The implications of these competing hypotheses are considered in the conclusions.     

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.     

Do banks diversify portfolio risk? A test of the risk-cost hypothesis

Baltensperger, 1972a, Baltensperger, 1972b proposes the risk-cost hypothesis that banks decide the number of loans by considering the costs arising from diversifiable portfolio risk. Thus, the banks do not minimize operation costs, but total costs including risk costs. This paper examines empirically whether the risk-cost hypothesis is valid, using financial panel data from Japanese banks from 1981 to 1994. Estimating the first-order condition of total cost minimization together with an operation cost function, we find that the hypothesis is supported. Dividing the sample into different types of banks, it is found that the hypothesis is valid for city and regional banks, but not for second regional banks.