论企业风险对冲与管理者激励

本文根据委托代理理论,利用风险管理决策的效用原则,分析企业管理者不同薪酬制度下的风险偏好和风险管理决策；进一步说明股东可以通过设计不同的管理者薪酬计划,校正管理者在风险管理决策中的利益动机,进而使管理者制定的风险管理决策符合股东价值最大化目标。     

Hedging House Price Risk with CME Futures Contracts: The Case of Las Vegas Residential Real Estate

Until the recent introduction of real estate futures on the Chicago Mercantile Exchange (CME), there have been few opportunities to manage house price risk. This paper examines whether house price risk can be effectively hedged in Las Vegas, one of the CME contract cities. The analysis considers hedging from the viewpoint of real estate investment groups, mortgage portfolio investors, builder/developers and individual homeowners. For investment groups and mortgage holders holding a mix of new and existing home assets, CME futures would have reduced house price risk by more than 88% over the 1994–2006 period. Similarly, homeowners implicitly hedging price volatility of existing homes also would have fared well over the sample period. However, builder/developers worried about new home price appreciation would have been much less successful in managing their risk. One important caveat, minimum variance hedge ratios change over time and may cause hedge performance to suffer.

为什么使用外币债务？——中国上市公司的实证证据

本文基于中证800指数公司2013年至2015年年报中金融负债的币种结构信息,首次研究了我国公司层面外币债务的使用动机以及财务后果。研究发现,我国上市公司外币债务融资的重要影响因素为外汇风险对冲;国际化水平较高的公司更可能使用外币债务。另外,本文首次直接研究并发现了外汇衍生品与外币债务的互补关系。进一步研究发现,外币债务的使用能够降低债务资本成本,但人民币贬值带来的汇兑损失会抵消其低利率优势。本文的研究结果为我国企业平衡本外币债务成本(风险)与收益、优化负债水平和结构提供了借鉴。     

商品期货合约定价问题研究

在终期效用最大化约束条件下,参与商品期货市场的标的商品的生产商、加工商和投机者等三类交易主体存在最优期货头寸持有量.通过联立证券、商品期货和现货三个市场,一个商品期货合约定价的两期静态模型得以确立.商品期货合约价格由资本市场系统风险溢价和非市场风险溢价两个部分构成,其绝对值与参与商品期货交易的投机者数量呈反比,投机者数量越多,商品期货合约价格的绝对值越小,表明商品期货交易风险越小,商品期货价格越平稳,价格发现功能越突出.     

Policy uncertainty,the use of derivatives: Evidence from U.S. bank holdingcompanies (BHCs)

We explore the link between bank holding companies’ hedging in derivatives and economic policy uncertainty using a newspaper-based index of policy uncertainty. Interestingly, we find that bank holding companies use derivatives less intensively in states where policy uncertainty is high (they hedge against homogenous (tradable) risk only); instead, they allocate their risk exposure via lending (thus increasing their credit risk). This finding is robust to different combinations of data samples, including the usage of only fourth quarter data, annual data, excluding bank mergers and acquisitions, and the results are robust to sample selection.     

The impact of derivatives hedging on the stock market: Evidence from Taiwan’s covered warrants market

We examine the impact of derivatives hedging on the spot market using accurate hedge ratios of covered warrants traded in the Taiwan Stock Exchange (TWSE). Results present significant positive abnormal returns and trading volumes before the announcement of a warrant’s issuance, and the effect is stronger when the hedging demand is larger. Moreover, a significantly positive relationship exists between stock return volatility and the price elasticity of hedging demand. Finally, we observe a significantly negative price effect upon the underlying stock after a call warrant has expired in-the-money due to the liquidation of hedging portfolios.     

Corporate debt issues and interest rate risk management: Hedging or market timing?

Apart from the obvious reasons for raising capital, a firm can hedge its interest rate exposure by issuing debt, the value of which moves in an opposite direction from the value of its assets as interest rate varies. We examine whether firms in the UK market make full use of debt issuances for hedging purposes or if they have other considerations. Our evidence shows that firms’ choices of debt issues are primarily driven by debt market conditions in an effort to lower their costs of capital rather than managing their firm-specific interest rate exposures. This suggests that market timing, as opposed to hedging, is the primary motivation behind corporate debt issuances.     

Effects of interest rate swaps

In this paper we examine the effect of interest rate swaps on the firm, and identify characteristics of firms that use interest rate swaps, reporting findings consistent with interest rate swaps being used as a risk-reducing instrument. Relative to nonswappers, firms using swaps are more likely to experience decreased cash flow variance in the five-year period subsequent to swap initiation. In addition, firms that engage in swaps are found to be larger and more highly levered than a control sample of nonswappers. Dividing our sample based upon type of swap, we find different characteristics explain different types of swap. In particular we find evidence consistent with swaps from variable to fixed interest rates being engaged in for risk reduction, i.e., hedging purposes.     

Safe haven,hedge and diversification for G7 stock markets: Gold versus bitcoin

We compare gold and Bitcoin for the G7 stock markets, finding that gold and Bitcoin have distinct safe haven and hedging characteristics. Gold is an undisputable safe haven and hedge for several G7 stock indices, whereas Bitcoin takes these two functions in Canada. The out-of-sample hedging effectiveness of gold is much superior to that of Bitcoin. Furthermore, we find that the conditional diversification benefits offered by gold to equity investments in the G7 markets are comparatively much higher and more stable than those of Bitcoin, especially in the lower return quantiles, i.e., when both the stock and gold markets are in a bearish state. Implications are further discussed.     

The interest rate exposure of lodging firms

The purpose of this study is to investigate the interest rate exposure of lodging firms and to determine whether the use of interest rate derivatives reduces this exposure. Using a sample of 47 lodging firms from the period from 2000 to2004, the first stage regression results show that most lodging firms face exposure to interest rates. The key finding of this study is a significant decline in exposure even after controlling for interest and foreign exchange risk. Additional findings show firm size, floating rate debt, interest coverage ratio, and foreign sales ratio to be important determinants of interest rate exposure.