试论我国企业外债风险管理

自1973年布雷顿森林体系崩溃以来,西方各国纷纷放松甚至取消外汇管制和利率管制。汇率和利率频繁而剧烈的波动加剧了企业的经营风险。目前我国大多数企业防范外债风险措施不力,给企业经营和国家外债安全带来隐患。本文试从我国企业外债风险管理普遍存在的问题,借鉴国内外成功经验,论述企业如何进行外债风险管理以达到规避风险的目的,以及国家外汇法规、人民币／外币衍生金融工具和衍生工具会计处理的如何满足企业外债风险管理需求。     

Predictability of Emerging Market Local Currency Bond Risk Premia

This article investigates the source of predictability of emerging market (EM) local currency bond risk premia by using a dynamic factor approach based on a large panel of economic and financial time series. We find strong predictable variation in EM local currency excess bond returns that is associated with macroeconomic activity. We provide evidence that the main predictor variables are the factors based on real economic activity that are highly correlated with measures of industrial and manufacturing production; however, factors based on global financial factors also contain information about the future local currency bond returns. The predictive power of the extracted factors is both statistically significant and economically important. Our research has important implications for policymakers and pension fund managers.     

Foreign exchange risk and the cross-section of stock returns

We examine the relation between the cross-section of US stock returns and foreign exchange rates during the period from 1973 to 2002. We find that stocks most sensitive to foreign exchange risk (in absolute value) have lower returns than others. This implies a non-linear, negative premium for foreign exchange risk. Sensitivity to foreign exchange generates a cross-sectional spread in stock returns unexplained by existing asset-pricing models. Consequently, we form a zero-investment factor related to foreign exchange-sensitivity and show that it can reduce mean pricing errors for exchange-sensitive portfolios. One possible explanation for our findings includes Johnson's [2004. Forecast dispersion and the cross-section of expected returns. Journal of Finance, 59, 1957–1978] option-theoretic model in which expected returns are decreasing in idiosyncratic cashflow volatility.     

The Effect of Interest Rates on the Value of Corporate Assets and the Risk Premia of Corporate Debt

A growing number of papers have applied option pricing techniques to the valuation of risky debt. This paper deals directly with how a firm's relationship to interest rates affects its debt. A sequential binomial model is used to price the zero-coupon bonds of a firm whose value is related to interest rate changes.The results show that the strength of the relationship between firm value and interest rates (interest-rate risk) can have a significant impact on the value of a firm's debt. The model produces its most powerful results when the volatility of firm value is high and the term structure has a steep (negative or positive) slope; there is no impact when the term structure is flat. Our results indicate that empirical studies of yield spreads may have severe shortcomings if the relationship of firm value to interest rate changes is ignored.     

Modeling Foreign Exchange Risk Premium in Armenia

This paper applies stochastic discount factor methodology to modeling the foreign exchange risk premium in Armenia. We use weekly data on foreign and domestic currency deposits, which coexist in the Armenian banking system. This coexistence implies elimination of the cross-country risks and transaction costs, leaving the pure foreign exchange risk. It is shown that there exists a systematic time-varying risk premium that increases with maturity. Using two-currency affine term structure and generalized autoregressive conditional heteroskedasticity (GARCH)-in-mean models, we find that the central bank's foreign exchange market interventions and ratio-of-deposit volumes significantly affect public expectations about foreign exchange fluctuations. We also find that the foreign exchange risk premium accounts for the largest part of the interest differential. When accounting for economic and institutional differences, our results can be extended to other countries.     

基于现金流模型的我国旅游业外汇风险暴露研究

汇率变动导致的国际市场需求变化会引起旅游业的外汇风险暴露。通过构建基于需求的经营性外汇风险暴露模型（经营性现金流模型）和旅游业加权汇率指数（TTWI）,采用2005—2011年国内上市旅游公司的数据,对我国旅游公司的经营性现金流进行实证分析。研究发现,有很大比例旅游公司的经营性活动暴露于外汇风险之下,其外汇风险暴露形式呈现出非线性、非对称和滞后性的特征。旅游公司在管理外汇风险暴露时,可通过投资于外币资产或使用外币负债在总现金流上分散汇率风险。     

On the Foreign Exchange Risk Premium in Sticky-Price General Equilibrium Models

The properties of the foreign exchange risk premium in general equilibrium models with sticky nominal pricesare examined. In these models, risk premiums arise endogenously because monetary shocks lead to covariationof consumption and exchange rates. In some cases, the risk premiums are much larger than those produced inneoclassical general equilibrium models.     

Risk Premia in Foreign Currency Futures

This paper tests the uncorrelatedness of increments of daily foreign currency futures prices and derives implications for risk premia based on a heteroscedasticity-robust variance ratio test. There is evidence suggesting the existence of a time-varying risk premia. Moreover, the results suggest that currency futures price is not an unbiased predictor of currency spot price on corresponding maturity date of currency futures contract. The paper also applies a heteroscedasticity-adjusted Box-Pierce Q test to the same data set for comparison.     

Interpreting Implied Risk-Neutral Densities: The Role of Risk Premia

This paper examines differences between risk-neutral and objective probability densities of future interest rates. The identification and quantification of these differences are important when risk-neutral densities (RNDs), such as option-implied RNDs, are used as indicators of actual beliefs of investors. We employ a multi-factor essentially affine modeling framework applied to German time-series and cross-section term structure data in order to identify both the risk-neutral and the objective term structure dynamics. We find important differences between risk-neutral and objective distributions due to risk premia in bond prices. Moreover, the estimated premia vary over time in a quantitatively significant way, which implies that the differences between the objective and the risk-neutral distributions also vary over time. We therefore conclude that one should be cautious in interpreting RNDs in terms of expectations. The method used in this paper provides an alternative approach to identifying objective probabilities of future interest rates.     

跨境关联交易、外汇资金流动与外汇管理

跨境关联交易是涉及境内外关联方之间转移资源或义务的交易活动,它与外汇资金的流动密切相关,对一国的外汇管理具有不可忽视的影响。特别是在当前我国国际收支持续大幅双顺差、外汇储备不断增加的形势下,更需要高度关注跨境关联交易的各种风险。     

Fiscal and Monetary Policy Coordination,Macroeconomic Stability,and Sovereign Risk Premia

In standard macroeconomic models, equilibrium stability and uniqueness require monetary policy to actively target inflation and fiscal policy to ensure long‐run debt sustainability. We show analytically that these requirements change, and depend on the cyclicality of fiscal policy, when government debt is risky. In that case, budget deficits raise interest rates and crowd out consumption. Consequently, countercyclical fiscal policies reduce the parameter space supporting stable and unique equilibria and are feasible only if complemented with more aggressive debt consolidation and/or active monetary policy. Stability is more easily achieved, however, under procyclical fiscal policies.     

以新思维审视中国外汇储备风险

外汇储备是一国国际经济活动往来形成的特殊的外币债权,中国经常项目、资本和金融项目的特点以及热钱的大规模流入决定了中国当前的外汇储备存在一定的不稳定因素。过多的外汇储备必将产生较大的机会成本风险,并且面临着较大且频繁的汇率风险以及境外金融机构倒闭和资产价格波动的风险,给国内的流动性控制和金融调控带来诸多的困难,增加了贸易摩擦的频率。要审时度势,通过加快国内经济结构调整、鼓励走出去、多元化运作储备资产等形式规避中国外汇储备所面临的风险。     

Do Beta Pricing Models Explain January Mean Reversion in Stock Returns?

Jegadeesh (1991) finds evidence of January mean reversion in stock returns. In this paper we attempt to distinguish between two competing economic explanations of January mean reversion in returns: (1) mispricing in irrational markets versus (2) predictable time variation in security risk premia. Excess portfolio returns are decomposed into “explained” and “unexplained” components using the Fama-French (1993) pricing model. The explained excess returns exhibit January mean reversion. The unexplained excess returns are not mean reverting. Mean reversion is therefore consistent with rational pricing in the framework of the Fama-French model. Mean reversion can be attributed to the component of return related to a relative distress factor (SMB). A comparison with the Chen, Roll, and Ross (1986) macroeconomic factors reveals that mean reversion is due to the components related to SMB and bond default premium.     

The pricing of sentiment risk in European stock markets

This paper studies whether sentiment is rewarded with a significant risk premium in the European stock markets. We examine several sentiment proxies and identify the Economic Sentiment Indicator from the EU Commission as the most relevant sentiment proxy for our sample. The analysis is performed for the contemporaneous excess returns of EA-11 stock markets in the period from February 1999 to September 2015. We apply a conditional multi-beta pricing model in order to track the variation of the sentiment risk premium over time. The results demonstrate a positive significant relationship between sentiment and contemporaneous excess returns which is consistent with previous studies. The calculated sentiment risk premium is significant as well but negative implying that an investment in EA-11 countries over the examined time period – that is bearing sentiment risk – would have been unattractive to the investors on average.     

次贷危机后中国外汇储备资产的风险及优化配置北大核心

次贷危机爆发后,国际金融市场动荡,中国巨额外汇储备资产面临着严重亏损风险。本文首先分析了我国外汇储备以美国国债为主而隐含的信用风险、汇率风险、流动性风险以及投资收益损失风险。长期来看,要逐步减持美元资产,优化外汇储备资产配置。然后,本文从金融资产和非金融资产两个角度对中国外汇储备的资产优化配置问题进行了研究。     

关于中国外汇储备多与少的思考

本文认为,外汇储备的增长既是我国经济实力增强的必然结果,又对我国经济健康发展具有重要保障作用;我国外汇储备尽管已逾8000亿美元,但并没有足够证据表明外汇储备已经“过多”;外汇储备的增减有其自身的规律性,只要外汇储备增长的同时,国内经济运行状态良好,就应当认为这种增长是正常的、合理的;外汇储备增长并不是通货膨胀、汇率升值的决定因素,也不存在资源浪费问题。     

Interest Rate Premia on UK Small-Firm Bank Borrowings: A Research Note

This research note examines empirically the determinants of bank interest rate premia for a sample of UK small firms over the period 1986 to 1991. A number of testable hypotheses are formulated regarding the relationship between interest rate premia and a number of firm-specific risk and cost factors. The empirical results indicate that interest rate premia are significantly related to several of the firm-specific cost and risk factors. These results suggest that there has been some attempt to incorporate into loan pricing decisions both the direct costs associated with individual loan advances and the specific risk characteristics of the borrower.     

Risk Premia in Foreign Currency Futures: A Reexamination

This paper reexamines the significant autocorrelation results of foreign currency futures reported by Liu and He [12] in this journal. It argues that extremely thin trading early in the life of individual futures contracts induces unreliable results in [12]. Moreover, the Monte Carlo results clarify the power performance between Lo and MacKinlay's [13] variance ratio tests and Diebold's [3] Q-statistics; both tests are used by Liu and He.     

Foreign exchange exposure of “domestic” corporations

Unlike prior studies on foreign exchange risk that have focused on multinational companies, this paper documents that domestic companies face significant foreign exchange exposure. Indeed, we document that on average domestic company foreign exchange exposure is not significantly different from the exposures faced by multinational firms. As expected, the number of domestic firms with significant foreign exchange exposure increases with the exposure estimation horizon. More interestingly, the level of domestic firm exposure is significantly negatively related to firm size and asset turnover, and positively related to the market to book ratio and financial leverage. Our results have important implications for managers, policy makers, and accounting standards.