How do female directors improve board governance? A mechanism based on norm changes

Prior literature documents that corporate boards with female directors produce better governance outcomes than all-male boards. However, female directors constitute the minority on most boards, which precludes majority voting as the mechanism through which they change board decisions. We identify changing the norms of how the board works as this mechanism. Using the market for norms framework, we explain how female directors are effective even without possessing a board majority or other sources of symbolic power, such as hierarchical authority and social gravitas. Empirically, we show that independent female directors, compared to their male counterparts, are more effective at changing board norms (board processes) and improving governance (board outputs).     

双层摊铺技术在沥青混凝土路面施工中的应用

本文主要对双层摊铺技术在沥青混凝土路面施工中的作用、施工准备及应用进行了分析与探究。     

欧盟海关同盟战略及其执行评析

摘要：海关同盟是欧盟的三大支柱之一，也是欧盟单一市场的基石。因此，欧盟一直通过其海关同盟战略及其各类实施工具来强化有效、高效、统一、协调的海关联盟。在三十年的海关同盟演进过程中，欧盟海关同盟战略都是承接并贡献于欧盟总体经济规划目标。在其三项海关同盟战略之间以及海关同盟战略与海关行动计划之间存在着延续与发展的关系。为了实现欧盟海关战略目标，欧盟采取了软硬结合的开放协调机制以实施其战略。     

“教育论文”不能逾越的三条边界

论文的标准有很多,但至少要有完整的题录和文后参考文献,及正文的结构三条边界。中小学教师要掌握这三条边界。从辅导学生写论文的角度,更要掌握它们了。     

Decision-making in incomplete markets with ambiguity—a case study of a gas field acquisition

We apply utility indifference pricing to solve a contingent claim problem, valuing a connected pair of gas fields where the underlying process is not standard Geometric Brownian Motion and the assumption of complete markets is not fulfilled. First, empirical data are often characterized by time-varying volatility and fat tails; therefore, we use Gaussian generalized autoregressive score (GAS) and GARCH models, extending them to Student’s t-GARCH and t-GAS. Second, an important risk (reservoir size) is not hedgeable. As a result, markets are incomplete which makes preference free pricing impossible and thus standard option pricing methodology inapplicable. Therefore, we parametrize the investor’s risk preference and use utility indifference pricing techniques. We use Least Squares Monte Carlo simulations as a dimension reduction technique in solving the resulting stochastic dynamic programming problems. Moreover, an investor often only has an approximate idea of the true probabilistic model underlying variables, making model ambiguity a relevant problem. We show empirically how model ambiguity affects project values, and importantly, how option values change as model ambiguity gets resolved in later phases of the projects. We show that traditional valuation approaches will consistently underestimate the value of project flexibility and in general lead to overly conservative investment decisions in the presence of time-dependent stochastic structures.     

Can investors of Chinese energy stocks benefit from diversification into commodity futures?

We attempt to evaluate the diversification potential of commodity futures for energy stocks in China. With a variety of copula functions and three risk-based dynamic measures, our results show that even though commodity futures are not helpful in improving the risk-adjusted returns of energy stocks, they can significantly reduce the volatilities and expected-shortfalls of the diversified portfolios. Such diversification benefits are much larger during large market downturns than during normal times. In particular, gold (copper) futures are the most (least) attractive in diversifying risks of energy stocks in most cases. The results also highlight that the non-linear dependence cannot be ignored when estimating the diversification benefits, and more various risk hedging strategies are expected for investors holding energy stocks, especially coal company stocks.     

A Generalized Nash Equilibrium network model for post-disaster humanitarian relief

We develop a Generalized Nash Equilibrium network model for post-disaster humanitarian relief by nongovernmental organizations (NGOs). NGOs derive utility from providing relief supplies to victims of the disaster at demand points in a supply chain context while competing with each other for financial funds provided by donations. The shared constraints consist of lower and upper bounds for demand for relief items at the demand points to reduce materiel convergence or congestion. This game theory problem is reformulated as an optimization problem and numerical examples and a theoretical case study on Hurricane Katrina given.     

后金融危机时期全球创业教育与中国创业发展——基于全球创业观察最新数据分析的结论

通过2008年全球创业观察（GEM）获得的数据分析,可以认为创业的发生、发展与创业教育有很大关系。总体而言,创业教育和培训对创业能起到积极的促进作用。但创业教育的不同形式与不同来源对各国的创业所产生的作用各有不同,取得的效果也存在着差异。创业教育对创业产生的效果与其文化和价值观念、经济发展水平、社会保障体系成熟程度以及就业机会等因素有很大关系,同时与创业群体的年龄阶段、创业教育或培训的供给情况以及创业教育的质量等因素关系密切。本文在分析基础上得出的结论,为我国政府在创业教育和培训方面制定政策等提供了决策性参考依据。     

浅谈深基坑的若干问题

本文主要论述了深基坑围护的若干设计理论及施工技术,并结合工程实际进行案例分析,探讨结合理论知识指导实际工程管理的作用。     

转账支票两种结算方式浅析

本文分别介绍了转账支票正送与倒送两种结算方式的特点,买卖双方使用支票收付款业务的办理流程及账务处理,并分析了两种结算方式的选择因素及应注意的问题。