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81.
在越来越激烈的成品油终端市场竞争中,只有及时了解并满足顾客需求,成品油销售企业才能获得生存与发展。从成品油最终顾客出发,分析顾客需求之相关因素及重要性程度,综合运用层次分析法和矩阵分析法,建立成品油终端市场顾客需求模型,从而为成品油销售企业认识和满足顾客需求提供了客观科学的依据。 相似文献
82.
This paper develops a pricing model and empirically tests the pricing efficiency of options on the U.S. Dollar Index (USDX) futures contract. Empirical tests of the model indicate that the market consistently overprices these options relative to the derived model. This overpricing is more pronounced for out‐of‐the‐money options than for in‐the‐money options and more pronounced for put options than for call options. To validate the above results, delta neutral portfolios are created for one‐ and two‐day holding periods and consistently generate positive arbitrage profits, indicating that on average the market overprices the options on the USDX futures contracts. 相似文献
83.
The direct valuation procedure of performing discounted expectation to obtain the prices of multi-state lookback options may
lead to insurmountable complexity and numerical difficulties. The computation may require numerical differentiation of the
joint distribution function of the extremum values, then followed by numerical integration over a semi-infinite domain. In
this paper, we illustrate the use of an alternative approach that significantly simplifies the calculations of multi-state
lookback option prices. The financial intuition behind the new approach involves the choice of a sub-replicating portfolio
and the adoption of the corresponding replenishing strategy to achieve the subsequent full replication of the derivative.
The replenishing premium is obtained by performing the integration of an appropriate distribution function over the range
of asset price within which under replication occurs. The sub-replication and replenishment procedures may be utilized as
hedging strategies for the lookback options. The pricing and hedging properties of multi-state lookback options are also discussed.
This revised version was published online in June 2006 with corrections to the Cover Date. 相似文献
84.
This paper examines the variance ratio tests in studies of transitory volatility and concludes that the variance ratio is an appropriate test of trading structure differences only under certain assumptions regarding the evolution of underlying stock prices and the autocorrelation structure of returns. This result raises caution as to the interpretation of results bases upon the 24-hour variance ratio methodologies in studies of transitory volatility and trading structure effects. A numerical example indicates that errors in inferences can be severe. 相似文献
85.
指出提高质量体系认证的有生应从以下两方面入手:首先要提高质量体系的有效性,应从质量体系的建立、宣贯、实施、保持、完善等五个方面作细致的工作,并且还要搞好内审及管理评审;其次要提高认证工作的有效性,要选择适合石油企业的认证公司,还要求认证公司要有熟悉石油相关专业的审核员及技术专家,认证公司要有一定的知名度及敬业精神,能为认证的企业负责,使认证企业的质量体系逐渐完善和提高。 相似文献
86.
通过对2001年版API Spec 11AX《抽油泵及其组件规范》的研究分析,指出了新版标准的先进性、科学性和合理性,阐明GB/T18607—2001:API Spec 11AX(1996)《抽油泵及其组件规范》在采标中存在滞后问题。 相似文献
87.
Sven Rady 《Finance and Stochastics》1997,1(4):331-344
This paper uses a probabilistic change-of-numeraire technique to compute closed-form prices of European options to exchange
one asset against another when the relative price of the underlying assets follows a diffusion process with natural boundaries
and a quadratic diffusion coefficient. The paper shows in particular how to interpret the option price formula in terms of
exercise probabilities which are calculated under the martingale measures associated with two specific numeraire portfolios.
An application to the pricing of bond options and certain interest rate derivatives illustrates the main results. 相似文献
88.
89.
Johnson R. Pawlukiewicz JAMES Mehta JAYESH 《Review of Quantitative Finance and Accounting》1997,9(1):89-101
This research presents a method for estimating the parameters of the binomial option pricing model necessary to appropriately price calls on assets with asymmetric end-of-period return distributions. Parameters of the binomial model are shown to be a function of the mean, variance, and skewness of the underlying return distribution. It is also shown that failure to incorporate skewness results in the mispricing of the call. 相似文献
90.