Valuation and Hedging of Differential Swaps

This paper derives a general‐form formula for pricing and hedging differential swaps with the principal denominated either in a domestic, foreign, or third‐country currency. We first derive the formula for differential swaps with the principal in a domestic currency and identify an error in the formula of Wei (1994). We then show the pricing duality between differential swaps with the principal in a domestic currency and differential swaps with the principal in a foreign currency. Finally, we complete the pricing and hedging analysis on differential swaps by deriving a formula for differential swaps with the principal denominated in a third‐country currency. Simulation results indicate that constant margin rates are generally smaller than interest rate differentials and decline with the tenor of swaps. Correlation parameters associated with the exchange rate play a more important role than correlation parameters among interest rates in pricing differential swaps. © 2002 John Wiley & Sons, Inc. Jrl Fut Mark 22:73–94, 2002     

国际贸易结算货币理论及其对我国的启示

随着多边贸易和国际货币多元化的不断发展,国际贸易结算货币的选择对降低汇率风险和交易成本,提高经济效益显得越来越重要。本文按三个发展阶段对国际贸易结算货币理论进行了述评,在此基础上探讨了目前我国对外贸易结算货币的选择及人民币作为国际贸易结算货币的可能性。认为,当前美元仍应是我国对外贸易首选结算货币,但我国应积极扩大人民币在边境贸易中的计价结算,并努力创造条件促使人民币在远洋贸易中计价结算,以降低国际贸易的汇率风险及促进人民币国际化的发展。     

Cross Hedging with Currency Forward Contracts

This study examines the behavior of a competitive exporting firm that exports to a foreign country and faces multiple sources of exchange rate uncertainty. Although there are no hedging instruments between the home and foreign currencies, there is a third country that has well‐developed currency forward markets to which the firm has access. The firm's optimal cross‐hedging decision is shown to depend both on the degree of incompleteness of the currency forward markets in the third country, and on the correlation structure of the random spot exchange rates. Furthermore, the firm is shown to be more eager to produce and expand its exports to the foreign country when the missing currency forward contracts between the home and foreign currencies can be synthesized by the existing currency forward contracts. In this case of perfect cross hedging, the separation theorem holds but the full‐hedging theorem may or may not hold. © 2012 Wiley Periodicals, Inc. Jrl Fut Mark     

Interest Rate,Currency and Equity Derivatives Valuation Using the Potential Approach

Based on the potential approach to interest rate modelling, we introduce a simple tractable model for the unified valuation of interest rate, currency and equity derivatives. Our model is able to accommodate the initial term structure of zero‐coupon bond prices, generate positive and bounded interest rates, and handle cross products such as differential swaps, quanto options and equity swaps. As our model is specified under the actual probability measure, it can be directly used for portfolio risk management and the computation of value at risk. Furthermore, our model yields simple analytical formulas that are easy to calibrate and implement.     

The components of interest rate swap spreads: Theory and international evidence

This article contains both a theoretical and an empirical analysis of the components of interest rate swap spreads defined as the difference between the fixed swap rate and the risk‐free rate of equal maturity. The components are determined by expected LIBOR spreads, default risk, and market structure. A model of the swap market incorporating debt market imperfections and corporate financing choices is used to explain participation by both swap buyers and sellers. The model also motivates an empirical relationship between swap spreads and the slope of the risk‐free term structure. The article then provides empirical evidence on the cross‐sectional and time‐series variation of swap spreads in seven international markets. The evidence is consistent with the suggested components across both markets and swap maturities as well as over time. © 2003 Wiley Periodicals, Inc. Jrl Fut Mark 23:347–387, 2003     

中国崛起背景下的涉外金融安全问题与对策

中国崛起背景下的涉外金融安全问题,主要表现在三个方面,即资本账户开放的安全问题、外汇储备资产或外汇资产的安全问题、国际支付结算体系的安全问题。导致中国涉外金融安全问题的外部原因是本币不具备储备货币的国际地位,需要从外部获得储备货币,必然缺乏安全;人民币汇率的信用依靠美元等储备货币背书,中国经济崛起也曾经依赖美元顺差;美国可以利用美元账户对资金、资产交易、跨境支付结算等,实施行政处罚、限制、冻结等制裁,乃至剔除出账户系统。内部原因是中国经济崛起,美国要打压和制裁;金融开放如果在汇率制度选择、外汇管制和管控上处理不当,允许储备货币资金完全自由进出而无约束,则必然存在金融危机的可能;国际收支失衡导致涉外金融缺乏安全。解决涉外金融安全问题应从四个方面着手:一是通过货币互换和多元化投资等方式保障外汇(储备)资产安全;二是通过提倡主权货币计价、支付、结算、融资,以及开展相关制度设计等方式建设好交易和支付结算系统;三是把握好资本账户开放;四是做好人民币国际化的基础工作。     

Exchange rate regimes, globalisation, and the cost of capital in emerging markets

This paper presents a multifactor asset pricing model for currency, bond, and stock returns for ten emerging markets to investigate the effect of the exchange rate regime on the cost of capital and the integration of emerging financial markets. Our results suggest that a fixed exchange rate regime system can help reduce the cost of capital in emerging markets by reducing the currency risk premia demanded by foreign investors.     

Exports and hedging exchange rate risks: the multi‐country case

This article examines the optimal production, export allocation, and hedging decisions of a risk‐averse international firm that exports to several foreign markets with different currencies. The firm faces multiple exchange rate risks. Optimal decisions are analyzed under two scenarios. In the first, there is a forward market for one currency only. Then, the export allocation to different markets is separable from the firm's preferences and the joint distribution of the exchange rates. In contrast, total production is not separable except for a special case. In the second scenario, there is a forward market for each currency. Then, both production and export allocation are separable. Hedging with forward contracts depends on risk premia and on the joint distribution of the exchange rates. If tradable exchange rate risk is a linear function of untradable exchange rate risk plus noise, there is a conflict between cross hedging and taking a basis risk. If, alternatively, the untradable exchange rate risk is a linear function of the tradable exchange rate risk and noise, there is no such conflict. A speculative position in a biased forward market for one currency can be cross hedged using an unbiased forward market for another currency. © 2000 John Wiley & Sons, Inc. Jrl Fut Mark 20:843–864, 2000.     

Hedging with mismatched currencies

This article presents a model of a risk-averse multinational firm facing risk exposure to a foreign currency cash flow. Forward markets do not exist between the firm's own currency and the foreign currency, but do exist for a third currency. Because a triangular parity condition holds among these three currencies, the available forward markets, albeit incomplete, provide a useful avenue for the firm to indirectly hedge against its foreign exchange rate risk exposure. This article offers analytical insights into the optimal cross-hedging strategies of the firm. In particular, the results show that separate unbiasedness of the forward markets does not necessarily imply a perfect full hedge that eliminates the entire foreign exchange rate risk exposure of the firm. The optimal cross-hedging strategies depend largely on the firm's marginal utility function and on the correlation of the random spot exchange rates. © 1999 John Wiley & Sons, Inc. Jrl Fut Mark 19:859–875, 1999     

The arrival of the Euro and its implications for Asia

The third stage of the European Economic and Monetary Union (EMU) commenced on January 1, 1999 with the launch of the European single currency, the euro. The first round of participants comprises 11 of the 15 European Union (EU) nations, dubbed “Euroland.” The potential implications of EMU for Asia are immense. The euro's emergence as an international currency and its impact on Asia can be assessed in 3 different domains: (1) as a medium of exchange for Europe's trade with Asia; (2) as a store of value in stocks and bonds in world capital markets; and (3) as part of official foreign exchange reserves of Asian central banks. Our analysis suggests that there is potential for the euro to play a bigger role in EU-Asia trade links, which will be underpinned by the collective importance of Euroland as a much-enlarged trading and investment partner for Asia. However, in the short term at least, Asian equity markets are unlikely to benefit from significant inflows of capital from the EU as the former have been decimated by the region's financial crisis. As for Asian bond markets, rapid deterioration of sovereign ratings of countries in the region over the past 12 months would make it difficult for Asian companies to raise funds through euro-denominated debt instruments. As for official foreign exchange reserves, the bulk of Asian reserves is currently held in US dollar assets. Judging from Asian trade and debt figures, it seems unlikely that the euro would challenge the US dollar as a reserve currency any time in the near future. Nevertheless, in the longer term, the euro's introduction could make it easier for Asian central banks to diversify their reserves from the greenback to the euro. The internationalization of the euro is likely to happen only gradually, whether in terms of international trade denomination and settlement, denominating international financial assets, or as a reserve currency. Since the magnitude of shock that the single European currency would bring to the international monetary system is still unknown, only very tentative conclusions for the impact on Asian countries can be drawn at this point in time.     

Currency risk in emerging equity markets

The paper develops an international capital asset-pricing model (ICAPM), which includes foreign currency risk, and examines the impact of capital market liberalisation on the pricing of risks. It applies the model to data from Pacific Basin financial markets and finds substantial evidence that not only currency risk is priced in both pre- and post-liberalisation periods, but the model is superior to one which does not include currency risk. This evidence suggests that an international capital asset-pricing model, which omits currency risk, will be misspecified. Furthermore, the results imply that since currency risk is priced and investors are compensated for bearing such risk they should not be discouraged by more flexible exchange rate regimes from investing in emerging markets.     

On the adequacy of single‐stock futures margining requirements

Unlike the traditional futures contract risk‐based approach to margining, new security futures contracts are margined under a strategy‐based margining system similar to that which applies in the equity options markets. As a result, these new margin requirements are potentially much less sensitive to changes in market conditions. This article performs a simulation to evaluate whether these alternative margining methodologies can be expected to produce comparable outcomes. The analysis suggests that a 1‐day settlement period will likely lead to collection of customer margins that are virtually always greater than that which its traditional risk‐based counterpart would require. A 4‐day settlement period would lead to margin requirements that both significantly under‐ and overmargin relative to a comparable risk‐based system. This study argues that exchanges may approach the preferred probability of customer exhaustion by managing margin settlement intervals. Thus, the new strategy‐based rules, in and of themselves, will not necessarily inhibit new security futures trading activity. © 2003 Wiley Periodicals, Inc. Jrl Fut Mark 23:989–1002, 2003     

The evolution of trading activity in Asian foreign exchange markets

We exploit previously unpublished data on foreign exchange turnover to analyse the institutional setting in which the currencies of non-Japan Asia are traded. Volumes grew rapidly between 2004 and 2007 and the diversity of market participants increased. Nevertheless, liquidity is undermined by foreign exchange controls. For Asian currencies other than JPY, HKD and SGD, non-residents account for a relatively small share of activity and FX swap markets are still in their infancy. Offshore non-deliverable markets have developed in response to controls, causing segmentation in trading activity. Furthermore, Herstatt risk remains high in Asian foreign exchange markets.     

Benchmark tipping and the role of the swap market in price discovery

The author uses a high‐frequency data set to investigate the roles of the sterling swap and futures markets in price discovery at the short‐end of the sterling yield curve. Information flows between the futures and swap markets are found to be largely contemporaneous. Causal information flows are bidirectional, although the futures market dominates the information flow over the very short term. Thus, the futures market remains the primary locus of price discovery despite the increased use of swaps as a pricing benchmark and hedging instrument in recent years. © 2007 Wiley Periodicals, Inc. Jrl Fut Mark 27:981–1001, 2007     

Identifying the Factors that Affect Interest‐Rate Swap Spreads: Some Evidence from the United States and the United Kingdom

We assess the ability of the factors proposed in previous research to account for the stochastic evolution of the term structure of the U.S. and U.K. swap spreads. Using as factor proxies the level, volatility, and slope of the zero‐coupon government yield curve as well as the Treasury‐bill—London Interbank Offer Rate (LIBOR) spread and the corporate bond spread, we identify a procyclical behavior for the short‐maturity U.S. swap spreads and a countercyclical behavior for longer maturity U.S. swap spreads. Liquidity and corporate bond spreads are also significant, but their importance varies with maturity. The liquidity premium is more important for short‐maturity swap spreads, although the corporate bond spread affects long‐maturity swap spreads. For the United Kingdom, swap spreads are countercyclical across maturities. In addition, we find that shocks to the liquidity premium are more significant for long‐maturity swaps and that the links between corporate bond markets and swap markets are much stronger than in the United States. When we look at the links between U.S. and U.K. swap markets, we identify a significant influence of the U.S. factors on the U.K. swap spreads across maturities. © 2001 John Wiley & Sons, Inc. Jrl Fut Mark 21:737–768, 2001     

Currency‐Protected Swaps and Swaptions with Nonzero Spreads in a Multicurrency LMM

Despite the fact that currency‐protected swaps and swaptions are widely traded in the marketplace, pricing models for zero‐spread swaps, and swaptions have rarely been examined in the extant literature. This study presents a multicurrency LIBOR market model and uses it to derive pricing formulas for currency‐protected swaps and swaptions with nonzero spreads. The resulting pricing formulas are shown to be feasible and tractable for practical implementation and their hedging strategies are also provided. Our pricing formulas provide prices close to those computed from Monte Carlo simulation, but involve far less computation time, and thereby offering almost instant price quotes to clients and daily marking‐to‐market trading books, and facilitating efficient risk management of trading positions.     

Funding development infrastructure without leverage: A risk‐sharing alternative using innovative sukuk structures

Muslim countries of the developing world suffer indebtedness resulting mostly from funding development infrastructure. Faced with a dire need for development infrastructure but with inadequate resources to fund them domestically, these governments often resort to foreign borrowing. As neither foreign banks nor international debt markets would allow for the debt to be in home currency, the funding is invariably denominated in foreign currency. For the borrowing country, in addition to currency exposure such borrowing increases the country's leverage and economic vulnerability. As these countries typically have a narrow economic base with heavy reliance on commodity exports, they are susceptible to the vagaries of commodity price fluctuation. Leverage increases the amplitude of the economy's fluctuation, resulting if not in outright crisis, then, at least in financial distress and depreciating home currency. As a result, when the foreign currency funded project comes on stream, it is burdened with huge accumulated debt which in many cases makes the project unmanageable without further government help through subsidy of operating costs. This further stresses already stretched government budgets and perpetuates indebtedness. This cycle of borrowing, leverage and vulnerability can be broken by innovative use of sukuk. The problem with debt financing is that the servicing requirements are independent of the underlying project's risk or cash flows. This paper presents two sukuk structures based on the risk sharing principles of Islamic finance. Sukuk that have returns linked to the nation's gross domestic product growth if the funded project is non‐revenue generating and linked to earnings of the project if it is revenue generating can avoid the problems above. The pay‐off profile, estimated cost of funds and returns to investors of these sukuk are discussed. When designed in small denomination, such sukuk can enhance financial inclusion, help build domestic capital markets and enable the financing of development without stressing government budgets.     

Speculative pressure

The paper investigates the information content of speculative pressure across futures classes. Long-short portfolios of futures contracts sorted by speculative pressure capture a significant premium in commodity, currency, and equity markets but not in fixed income markets. Exposure to commodity, currency, and equity index futures’ speculative pressure is priced in the broad cross-section after controlling for momentum, carry, global liquidity, and volatility risks. The findings are confirmed by robustness tests using alternative speculative pressure signals, portfolio construction techniques, and subperiods interalia. We argue that there is an efficient hedgers-speculators risk transfer in commodity, currency, and equity index futures markets.     

Exchange risk and asset returns: A theoretical and empirical study of an open economy asset pricing model

This study develops a consumption-based asset pricing model in which domestic consumers can buy goods from domestic and foreign markets but can only invest in domestic markets. In this model, the exchange rate influences asset prices through the marginal utility of consumption and increases the risks investors face. We find that our model can successfully price the 25 Fama–French portfolios and industry portfolios in the Chinese market, and the exchange rate is an important pricing factor in the unconditional linear model. We also find that the exchange risk is time-varying and countercyclical, which can help to explain the countercyclicality in equity premium.     

Mexico's integration into the North American capital market

We explore a model of time varying regional market integration that includes three factors for the North American equity market, the local Mexican equity market and the peso/dollar exchange rate. We argue that a useful instrument for the degree of integration is the sovereign yield spread. Applying our methodology to Mexico over the 1991–2002 period, we show that the degree of market integration was higher at the end of the period than at the beginning but that it exhibited wide swings that were related to both global as well as local events. We also discover that Mexico's currency risk is priced. Further, the currency returns process reveals strongly significant asymmetric volatility that is strongly related to the asymmetric volatility of the Mexican equity market returns process. A plausible reason for these results is that currency devaluations in emerging markets like Mexico can cause default-risk crises in local banking systems that mismatch local-currency assets and hard currency liabilities, whereas appreciations produce no such problems. Devaluations that destabilize banking systems are, therefore, more likely than appreciations to increase the volatilities of both the currency's and the equity market's returns.