Migrate or not? The effects of regulation SHO on options trading activities

In this study, we investigate the effects of stock short-sale constraints on options trading by exploiting two US Securities and Exchange Commission rule changes under Regulation SHO: Rule 203 (locate and close-out requirements) and Rule 202T (temporary removal of short-sale price tests). We find that stock short selling activities decrease (increase) significantly after Rule 203 (Rule 202T) implementation, supporting the validity of Rule 203 (Rule 202T) as an exogenous increase (decrease) in short-sale constraints. Options volume increases significantly after Rule 203 went into effect and the result is more pronounced among firms with lower levels of institutional ownership and smaller options bid-ask spreads. Therefore, the evidence from Rule 203 suggests that investors may use options as substitutes for stock short sales when short selling is less feasible or more costly due to the locate and delivery requirements. In contrast, we find no significant change in the options trading volume of pilot stocks during the pilot program of Rule 202T. Overall, our results indicate that the impact of short-sale constraints on options trading varies with the types of constraints affected.     

Non-parametric method for European option bounds

There is much research whose efforts have been devoted to discovering the distributional defects in the Black–Scholes model, which are known to cause severe biases. However, with a free specification for the distribution, one can only find upper and lower bounds for option prices. In this paper, we derive a new non-parametric lower bound and provide an alternative interpretation of Ritchken’s (J Finance 40:1219–1233, 1985) upper bound to the price of the European option. In a series of numerical examples, our new lower bound is substantially tighter than previous lower bounds. This is prevalent especially for out of the money options where the previous lower bounds perform badly. Moreover, we present how our bounds can be derived from histograms which are completely non-parametric in an empirical study. We discover violations in our lower bound and show that those violations present arbitrage profits. In particular, our empirical results show that out of the money calls are substantially overpriced (violate the lower bound).     

Corporate Lobbying and Firm Performance

Corporate lobbying activities are designed to influence legislators, regulators and courts, presumably to encourage favorable policies and/or outcomes. In dollar terms, corporate lobbying expenditures are typically one or even two orders of magnitude larger than spending by Political Action Committees (PAC), and, unlike PAC donations, lobbying amounts are direct corporate expenditures. We use data made available by the Lobbying Disclosure Act of 1995 to examine this more pervasive form of corporate political activity. We find that, on average, lobbying is positively related to accounting and market measures of financial performance. These results are robust across a number of empirical specifications. We also report market performance evidence using a portfolio approach. We find that portfolios of firms with the highest lobbying intensities significantly outperform their benchmarks in the three years following portfolio formation.     

Career concerns,shareholder monitoring and investment efficiency: From the perspective of compensation contract rigidity in Chinese SOEs

This paper presents theoretical analysis of how career concerns and shareholder monitoring affect chief executive officer(CEO) agency costs. We investigate inve...     

中小软件外包人力资本投资风险与控制策略研究

人力资本投资在服务外包总投资中占了最大比重,对软件外包企业来说更是如此.人力资本投资比重的增加给企业带来更大收益的同时也增加了企业的投资风险.目前,我国中小规模软件外包企业员工流动率高达20％,是社会平均流动率的两倍,形势严峻.本文力图突破传统的共性分析层面,从中小软件外包特性分析出发,探讨其人力资本投资风险的形成过程,并分别基于交易成本理论和期权理论提出控制人力资本投资风险的再外包和分阶段投资策略,为我国中小软件外包企业缓解高人力资本流失率,控制人力资本投资风险提供理论依据.     

DEFINING AND OPERATIONALIZING SUPPLY CHAIN PROCESS INTEGRATION

Integration has been recognized as critical to successful supply chain management. However, an extensive literature review revealed no consensus in its conceptualization. The current study attempts to address this research gap by providing a better definition and operationalization of supply chain process integration. With empirical support, it is proposed that internal and external supply chain process integration should be treated as two separate constructs, each comprised of two dimensions: connectivity and simplification.     

大学生模拟创业平台体系的构建研究——以福州大学为例

本文总结了福州大学的学生模拟创业平台体系,即学生首先通过创业教育,培养创业意识,学习基本的公司管理知识,培养团队管理能力,之后利用社团互助平台,获取人力资源,组建团队,随之在赛事训练平台开展虚拟和实体的创业实践训练,在此基础上,形成成熟创业计划的团队,可申请孵化,进入创业孵化平台。该平台体系系统上具有有序性,运作上又具有系统性,可供有关同行参考。     

布线电缆桥架设计技术

现代化智能建筑中通常有多个信息监控和通信设施,因此在铺设线路之前要在布线方式和路由选择的排列进行详细设计,不但应该符合规范的要求,还要考虑布线的安全性、可扩性、经济性和美观,便于维修,电缆桥架作为承载各种电缆敷设的载体,从属于布线的需要,同样应遵循上述原则加以实施。本文就电缆桥架在设计中的技术问题进行分析和探讨。     

小型水利工程质量管理现状及建议

分析小型水利工程质量现状,提出应对措施.给水利工作者们一点启发.