首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 64 毫秒
1.
中国证券市场起步于90年代初期,由于缺乏风险对冲工具和做空机制,市场长期以来一直处于单边市状态,即投资者只能通过买入股票并等待其上涨来获得收益,如果市场处于下跌通道之中,投资者或者被动忍受损失,或者离场观望。而中国证券市场波动又比较剧烈,这就更加大了投资者的投资风险。沪深300股指期货的推出将使得国内证券市场格局发生重大变革:一方面,投资者可以通过投机来获利;另一方面,投资者可以通过股指期货进行避险,即所谓的套期保值。  相似文献   

2.
基差本身变化带来的风险会影响到套期保值的具体效果,本文以上海期货交易所电解铝期货为实例,利用VaR方法对基差风险进行测度,以帮助投资者在套期保值过程中评估其所面临的风险,从而为套期保值者(无论是空头套期保值者还是多头套期保值者)正确选择入场时机,精确计算因基差朝着不利方向变化而导致的所需追加保证金数额,从而做好在期货套期保值中的资金管理,有效回避市场风险奠定基础。  相似文献   

3.
中国证券市场起步于90年代初期,由于缺乏风险对冲工具和做空机制,市场长期以来一直处于单边市状态,即投资者只能通过买入股票并等待其上涨来获得收益,如果市场处于下跌通道之中,投资者或者被动忍受损失,或者离场观望。而中国证券市场波动又比较剧烈,这就更加大了投资者的投资风险。沪深300股指期货的推出将使得国内证券市场格局发生重大变革:一方面,投资者可以通过投机来获利;另一方面,投资者可以通过股指期货进行避险,即所谓的套期保值。  相似文献   

4.
本文提出了最小VaR(风险价值)套期保值比率。与最小方差套期保值比率相比,最小化套期保值资产组合VaR套期保值比率,能够较好地反映金融资产收效率数据通常具有的尖峰厚尾、波动簇集等特征,提高了计算的准确性,从而更为精确地测定套期保值资产组合所面临的风险。实证研究结果表明,在动态预测中,使用最小VaR套期价值策略的预测效果优于最小方差套期保值策略,为投资者利用期货市场套期保值,估计和控制风险提供了一个有效手段。  相似文献   

5.
套期保值工具及其风险管理   总被引:1,自引:0,他引:1  
在经济全球化、金融自由化的今天,世界经济充满不确定性,各种原材料价格大幅波动给所有企业生产、销售计划带来很大困难,企业经营对衍生品期货市场的价格发现和风险规避功能的需要会进一步增强,为了规避价格波动风险,企业必须利用衍生品做套期保值,以对冲现货价格波动带来的风险及锁定成本和预期利润,保证经营计划顺利完成,衍生品规避风险在我国经济发展中将起到举足轻重的作用。  相似文献   

6.
本文以目前期货市场上的郑棉期货和棉花现货为研究对象,运用各种估计模型估计出棉花期、现货之间不同周期数据的实际最优套期保值比率,并基于风险最小化的原则对各模型的套期保值绩效进行评估和分析.实证发现,简单套期保值不能达到最优效果,棉花期、现货之间的最优套期保值比率随着数据周期性变化而变化,并且发现样本内的套期保值效果均比样本外数据好,误差修正模型的套期保值绩效最佳.  相似文献   

7.
随着我国市场经济的不断发展和全球经济一体化进程的加剧,中国俨然已融入世界经济发展的大潮中,然而我国对市场经济的理解还不够深入,上市公司对于金融衍生产品的研究,风险的预警、计算分析以及控制能力比较欠缺,因此在前期利益的诱惑下,企业家往往忽视公司风险管理和内部控制存在的漏洞,抱着一种赌博的心态参与全球市场竞争,正中国际投机者只下怀。本文在讲述套期保值的基本原理的基础上,结合国航套期保值导致巨额浮亏的案例分析,来进一步阐述套期保值的基本原理和操作规程。  相似文献   

8.
随着我国黄金期货市场的发展,越来越多的黄金投资者通过黄金期货进行套期保值来规避由于黄金价格波动引起损失的风险。本文运用黄金期货套期保值绩效作为套期保值有效性的评价指标,对OLS模型、ECM模型、BGARCH模型和ECM-BGARCH模型以及黄金期货一个月期、二个月期和三个月期的套期保值有效性进行横向和纵向的对比研究,以期为黄金投资者提升套期保值有效性,减少由于黄金价格波动而造成的损失提供思路。  相似文献   

9.
我国越来越多的上市公司利用金融衍生工具进行套期保值以应对原材料和产品价格的双重风险。本文对上市公司进行套期保值的动机进行了实证检验。结果表明,公司规模大小是上市公司进行套期保值的主要影响因素,而财务困境假说、投资不足假说并没有得到验证。  相似文献   

10.
本文以完全避险观、基差逐利观和投资组合观为基础,分析了衍生产品使用的三种目的;结合套期保值的实践证据,探讨了衍生产品使用中套期保值和投机的关系;提出了衍生产品使用的目的不仅是进行风险对冲,而且是通过风险承担获得收益。本文以深南电油品期权合约为例,剖析了合约交易的目的及其对企业损益的影响,提出了明确套保目的、量化风险敞口、选择衍生产品、规避融资风险等操作思路。  相似文献   

11.
    
The current derivatives pricing technology enables users to hedge derivatives with the underlying asset or any other traded derivative. In theory, there is no reason to prefer one hedging instrument to another. However, given model errors, this is not true. Imposing some simple assumptions on the structure of model errors, this paper shows that to maximize hedging accuracy, there is an ordering to the hedging instruments utilized. Holding constant market illiquidities, one should always hedge first with ‘like’ derivatives, next with derivatives one layer down the hierarchy of derivatives, and lastly using the underlying.  相似文献   

12.
为综合度量金融资产损失的市场风险与流动性风险,采用GARCH-VaR模型度量了日市场风险价值,用日内相对波动幅度调整为日LA-VaR,并利用时间延展槡T规则将它转换为变现期间的综合风险价值,构建了金融资产综合风险价值的全方位动态评估模型。通过以中国股指期货为例的实证研究证明,该模型能够有效评估金融资产综合风险价值,适用于金融资产公允价值的期末估算。  相似文献   

13.
In this paper I consider a hedging problem in an illiquid market where there is a risk that the hedger’s order to buy or sell the underlying asset may be executed only partially. In this setting, I find a mean-variance optimal hedging strategy by the dynamic programming method. The solution contains a new endogenous state variable representing the current position in the underlying. The exogenous coefficients in the solution are given by recursive formulas which can be calculated efficiently in Markov models. I illustrate effects of the partial execution risk in several examples.   相似文献   

14.
Interest rate derivatives at commercial banks: An empirical investigation   总被引:1,自引:0,他引:1  
I analyze the effects of bank characteristics and macroeconomic shocks on interest rate risk-management behavior of commercial banks. My findings are consistent with hedging theories based on cost of financial distress and costly external financing. Banks with higher probability of financial distress manage their interest rate risk more aggressively, both by means of on-balance sheet and off-balance sheet instruments. As compared to the derivative users, the derivative non-user banks adopt conservative asset-liability management policies in tighter monetary policy regimes. Finally, I show that the derivative non-user bank's lending volume declines significantly with the contraction in the money supply. Derivative users, on the other hand, remain immune to the monetary policy shocks. My findings suggest that a potential benefit of derivatives usage is to minimize the effect of external shocks on a firm's operating policies.  相似文献   

15.
This paper explains corporate hedging and speculation in a two period rational expectations model. A risk averse manager represents a firm that is priced in a risk neutral market. The manager enters into a cash flow hedge of a forecast transaction by taking a short position in the futures market. When the futures position is chosen, the manager possesses private information regarding the firm’s production capacity. Mandatory disclosure of the futures position in the financial statements allows the market to draw inferences over the manager’s information. These inferences affect the market’s pricing decision and in turn the manager’s hedging decision. The futures position taken is chosen not only to reduce price risk exposure but to signal some capacity level. In equilibrium, however, the market anticipates the manager’s strategy and is not fooled.Considering varying managerial preferences, we analyze three settings. In the basic setting speculation occurs whenever the manager prefers high market values in both periods. In the second setting we add transaction costs and find that speculation is less likely. Finally, we introduce uncertainty regarding the manager’s preferences. If the market needs to determine prices based on expected preferences, incentives to speculate are mitigated in equilibrium but still present.  相似文献   

16.
  总被引:3,自引:0,他引:3  
For 234 large non-financial corporations using derivatives, we report the magnitude of their risk exposure hedged by financial derivatives. If interest rates, currency exchange rates, and commodity prices change simultaneously by three standard deviations, the median firm's derivatives portfolio, at most, generates $15 million in cash and $31 million in value. These amounts are modest relative to firm size, and operating and investing cash flows, and other benchmarks. Corporate derivatives use appears to be a small piece of non-financial firms’ overall risk profile. This suggests a need to rethink past empirical research documenting the importance of firms’ derivative use.  相似文献   

17.
本文根据外汇储备的用途,建立了一个关于固定汇率制度下一国外汇储备规模的需求模型,在此基础上结合模型提出了建立我国外汇储备适度规模的估计方法,并进行了举例说明,从中可以发现模型对提高我国外汇储备规模的管理水平是有益的。  相似文献   

18.
运用协整检验、Granger因果检验、向最误差修正模型、Garhade-silber模型、误差修正模型等对2007年6月11日到2008年9月18日上海期货交易所锌期货合约的价格发现功能和套期保值功能进行研究,结果表明:锌期货与现货价格存在双向引导关系,锌期货市场在价格发现功能中处于主导地位,锌期货价格发现功能良好.锌期货样本内和样本外套期保值绩效分别为0.50074044和0.43854111,样本内套期保值绩效优于样本外套期保值绩效.我国锌期货市场具有一定的套期保值功能,但套期保值功能并未得到充分发挥,2008年6月到2008年9月锌期货市场投机氛围严重.  相似文献   

19.
Given recent regulatory inquiries into the derivative-trading practices of mutual funds, we examine their detailed option holdings to assess how mutual funds employ options, what funds use options, and how that affects performance and risk. Mutual funds’ use of options appears consistent with income generation and hedging motives, is systematically related to experience, education, and gender characteristics of portfolio managers, and does not lead to performance benefits, on average. Instead, certain uses of options lead to underperformance. We document no permanent or temporary aggressive risk taking by options users, finding instead that some funds use options to effectively lower risk.  相似文献   

20.
    
Statistical time-series approaches to hedging are difficult to beat, especially out-of-sample, and are capable of out-performing many theory-based derivative pricing model approaches to hedging commodity price risks using futures contracts. However, the vast majority of time-series approaches to hedging discussed in the literature are essentially linear statistical projections, whether univariate or multivariate. Little is known about the potential hedging capabilities of nonlinear methods. This study describes how least-squares orthogonal polynomial approximation methods based on the spanning polynomial projection (SPP) can be used to enhance standard (linear) optimal hedging methods and improve hedging performance for a hedger with a mean–variance objective. Empirical analyses show that the SPP can be used effectively for hedging and gives better out-of-sample hedging performance than the benchmark VEC-GARCH hedging model. Results are robust to the inclusion of transaction costs and risk-aversion assumptions.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号