Semistatic hedging and pricing American floating strike lookback options

We price an American floating strike lookback option under the Black–Scholes model with a hypothetic static hedging portfolio (HSHP) composed of nontradable European options. Our approach is more efficient than the tree methods because recalculating the option prices is much quicker. Applying put–call duality to an HSHP yields a tradable semistatic hedging portfolio (SSHP). Numerical results indicate that an SSHP has better hedging performance than a delta-hedged portfolio. Finally, we investigate the model risk for SSHP under a stochastic volatility assumption and find that the model risk is related to the correlation between asset price and volatility.     

Hedging and pricing early-exercise options with complex fourier series expansion

We introduce a new numerical method called the complex Fourier series (CFS) method proposed by Chan (2017) to price options with an early-exercise feature—American, Bermudan and discretely monitored barrier options—under exponential Lévy asset dynamics. This new method allows us to quickly and accurately compute the values of early-exercise options and their Greeks. We also provide an error analysis to demonstrate that, in many cases, we can achieve an exponential convergence rate in the pricing method as long as we choose the correct truncated computational interval. Our numerical analysis indicates that the CFS method is computationally more comparable or favourable than the methods currently available. Finally, the superiority of the CFS method is illustrated with real financial data by considering Standard & Poor’s depositary receipts (SPDR) exchange-traded fund (ETF) on the S&P 500® index options, which are American options traded from November 2017 to February 2018 and from 30 January 2019 to 21 June 2019.     

A MULTINOMIAL APPROXIMATION FOR AMERICAN OPTION PRICES IN LÉVY PROCESS MODELS

This paper gives a tree-based method for pricing American options in models where the stock price follows a general exponential Lévy process. A multinomial model for approximating the stock price process, which can be viewed as generalizing the binomial model of Cox, Ross, and Rubinstein (1979) for geometric Brownian motion, is developed. Under mild conditions, it is proved that the stock price process and the prices of American-type options on the stock, calculated from the multinomial model, converge to the corresponding prices under the continuous time Lévy process model. Explicit illustrations are given for the variance gamma model and the normal inverse Gaussian process when the option is an American put, but the procedure is applicable to a much wider class of derivatives including some path-dependent options. Our approach overcomes some practical difficulties that have previously been encountered when the Lévy process has infinite activity.     

Constructivist Negotiation Ethics

The success of Discourse Ethics is premised on the discovery and use of shared values. If this is true what type of negotiation style, especially when used in an intercultural setting, is best suited to make use of shared values. Research focusing on moral arguments between Germans and Americans uncovered an array of shared values. But the existence of shared values, by itself, was not an adequate predictor of a negotiation's success. What did prove to be a predictor of success was the use of a Constructivist style of negotiation by both parties.     

论英美新批评理论中文本的突显

在西方传统诗学中,文本只是作为艺术的载体而具有工具性意义,其自身的本性是隐而不现的。英美新批评理论以文本的研究为中心,对传统文艺批评形态起到了颠覆性作用。文本的突显并不是文艺批评理论发展进程中的偶然现象。该文试图从西方美学发展的时代性及其特定的时代主题出发,探讨文艺批评理论中文本突显的必然性,以此来理解英美新批评理论的现代意义。     

美国的城市化进程与现代城市规划联系的解读

回顾了美国城市化的独特发展历程和美国现代城市规划历史,并就二者之间的相互关系进行了探讨,以期对处于转型期的中国城市化发展有所启示和借鉴.     

美国高校教师聘任制的研究与启示

从实际操作流程、主要形式、评审考核等方面对美国高校教师聘任制进行了认真的剖析和研究,以期对我国的高校教师聘任制有所启示与借鉴。     

美国贸易逆差:增长惯性与可持续性

美国的经常项目逆差特别是贸易逆差“历史悠久”，尤其是近年来高速增长，已引起人们广泛的关注。1990年代来的美国贸易逆差，已很难单从汇率、贸易政策及产品竞争力等单个变量来加以解释。通过运用滞后一年的时间数列回归分析及相关分析，本文得出的结论是：当期美国贸易逆差是前期美国贸易逆差的惯性增长，并且只要美国能够维持强势美元，资本与金融账户的盈余足够冲抵贸易逆差，美国的贸易逆差便具有可持续性。在本文的最后一部分，作者针对近期美国人制造的“人民币升值论”，结合近10年来中美双边贸易现实，说明美国贸易逆差与人民币汇率之间没有必然联系，人民币升值不可能改善美国的贸易收支状况。     

公司治理结构:发达国家经验及其启示

公司治理结构的理论基础是委托—代理和企业的不完全契约。从实践看 ,目前在发达国家主要存在两类形式的公司治理机制 ,即英美模式和日德模式。两者在股权结构、组织结构、市场环境、法律制度、激励方式上均存在差异。英美模式侧重于依赖市场机制 ,而日德模式更倾向于公司内部的治理。     

试论美国钢铁保障措施及中国之应对

美国钢铁保护由来已久,美国总统3月5日宣布启动201条款实施钢铁保障措施的决定,引来世界各国注目。201条款带有贸易保护主义色彩且存在法律漏洞。此外,本文就WTO保障条款浅析美国保障措施的不合法之处,并就我国实际情况,针对美国钢铁保障措施做出应对之策,完善我国保障措施立法。