Options with Constant Underlying Elasticity in Strikes

Closed-form solutions are derived and interpreted for European options, with stochastic strike prices, that maintain constant elasticity of the strike with respect to the price of the underlying asset. We refer to such options as CUES. CUES preserve the relative shares of exercise price risk for both the buyer and writer of the option, regardless of whether the price of the underlying asset moves up or down. The relevance of the CUES concept is established through applications in two distinct fields. First, it is established that CUES-like options are embedded in private equity investments. This concept is then used in a novel application to determine the equity share of a private company corresponding to a given level of investment. Secondly, the advantages that CUES would provide over traditional executive stock option grants are considered and it is shown that CUES can provide enhanced incentive-alignment without increasing options expense to the company. JEL Classification: G130     

解析“民工荒”

2004年我国出现的"民工荒"现象是我国农村富余劳动力向城市转移过程中出现的一种特殊现象,但其背后有其发生的历史必然性,而解决这一问题则需从政府、用人单位、劳动者三个方面同时入手.     

What Drives the Property Price-Trading Volume Correlation? Evidence from a Commercial Real Estate Market

The significant price-trading volume correlation found in the residential property market presents a challenge to the rational expectation hypothesis. Existing theories account for this fact with either capital market imperfection (down-payment effect or loss-aversion consideration) or imperfect information (search theoretic models). This paper employs data from a commercial real estate market, which face a different degree of severity of capital market constraint than the residential market, and thus provide an indirect but effective test for alternative theories. Policy implications are also discussed.     

The choice between resale price maintenance and exclusive territories: Evidence from litigation

A manufacturer's choice between resale price maintenance (RPM) and exclusive territories to protect dealer provided services is examined empirically. The relative efficacy of RPM in solving the free rider problem depends on the life cycle of the product being distributed. A manufacturer of a product with a long life cycle is more likely to protect its dealers' investment in service with exclusive territories, whereas RPM becomes the more probable restraint for products of short life spans. Data gleaned from vertical restraint litigation strongly support this hypothesis.The author wishes to thank Howard P. Marvel, Laura A. Boyd, and two anonymous referees for comments on earlier versions of this paper. The financial support of The Procter and Gamble Fund is also gratefully acknowledged. Any errors are mine alone.     

Estimating the Accounting Price of Foreign Exchange: An Input–Output Approach

When adjustments in the foreign exchange market involve changes in the production of marginally traded goods, the traditional formula for calculating the accounting (shadow) price of foreign exchange assumes that domestic prices and marginal costs at efficiency prices for those goods are equal. In this paper, a method is proposed for estimating an accounting price ratio of foreign exchange in a partial equilibrium framework, abandoning that assumption. For that purpose, input–output techniques are used, to take into account the effets of changes in the production of traded goods.     

完全市场中的资产定价——有限离散时间情形

研究完全市场中有限离散时间情形下的资产定价问题。首先,给出了无风险收益的概念,借助无风险收益定义了一种风险中性概率。基于这个概率,得到了资产的价格等于随机现金流与随机贴现因子乘积的期望,而且资产的价格还等于资产支付关于q的期望对无风险收益的贴现值。其次,借助无风险概率考虑了资产在多期情形下的资产定价,得出了相应的股票期权公式,尤其作为推论给出了欧式看涨期权的定价公式,并对资产价格过程的鞅性作了讨论。     

股票停牌、涨跌停与ETF定价效率——基于上证50ETF日度数据的实证研究

本文应用中国股市2007年至2011年的数据,研究了上证50ETF市场价格和基金净值的相关关系,以及折溢价水平及其影响因素。基于ETF的申购赎回和交易机制,在成分股涨跌停板和停牌期间,由于ETF二级市场价格具有价格发现功能,ETF市场价格可能较大偏离(形式上的)ETF净值,造成ETF的异常折溢价,而此类异常折溢价并不是真正的套利机会。另外,上证50ETF的市场价格与基金净值存在显著同步变动的关系;在涨跌停板和停牌期间之外,上证50ETF的折溢价水平低于套利所需的交易成本。本文研究表明,上证50ETF具有较高的定价效率。     

税负效应与除息日股票价格行为研究——来自A股市场的实证证据

本文基于我国A股市场相关数据对除息日股价行为的税负效应进行全面检验,实证结果表明股息和资本利得税率对除息日股价波动行为具有显著影响,税负效应理论存在于A股市场,但除息日股价波动行为不能完全由税负效应进行解释,另外实证研究还发现我国A股市场不存在税收诱导客户效应。     

人民币汇率升值预期对我国国内生产成本的影响

改革开放以来,我国凭借国内生产的成本优势在国际贸易中获取了大量利益。出口刺激了经济的快速增长,然而持续顺差带来的本币升值问题却成为我国经济发展中的两难。虽然汇率升值可能造成出口部门竞争力下降,但是,理论上讲,汇率的升值也能够缓解国内通货膨胀的压力,并且能够降低进口原材料价格,从而降低国内的生产成本。然而,自汇改以来,人民币的升值并没有减缓通胀压力,相反的,升值一直伴随着物价的上涨,于此同时,人民币汇率、国内资产价格和物价之间的联动越来越明显。本文从人民币汇率预期、资产价格和物价的关系入手,研究人民币汇率升值预期对我国国内生产成本的影响。结果表明,人民币升值预期会导致我国国内生产成本的上涨,即成本优势的丧失。     

基于适应性预期的房地产价格驱动因素分析

从需求和供给两个角度出发,通过构建基于适应性预期的供需均衡模型,得出市场均衡时房地产价格决定因素的函数,并以此考察房地产价格波动及其影响因素之间的关系。同时,定性分析货币供应量、原材料价格指数、土地开发面积指数、居民通胀预期指数、人均可支配收入等因素对房地产销售价格的影响机制,通过单位根检验、Granger因果关系检验、VAR模型分析、脉冲响应分析等计量研究方法,对中国房地产价格波动的驱动因素进行实证分析,并针对研究结论提出相应的政策建议。