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.     

关系质量对企业知识创造绩效的作用机理：一个被调节的中介模型

基于嵌入性视角，分别引入知识转移、合作模式作为中介变量和调节变量，深入探究关系质量影响企业知识创造绩效的内在机理。利用277份来自全国多地的制造业及高新技术企业调查问卷，采用多元回归方法进行实证研究。结果表明：经济型和社会型关系质量均正向影响企业知识创造绩效；社会型关系质量通过元素知识和架构知识转移正向影响企业知识创造绩效。在契约治理模式下，经济型关系质量更倾向于通过元素知识转移正向影响企业知识创造绩效；在股权治理模式下，社会型关系质量更倾向于通过架构知识转移正向影响企业知识创造绩效。     

Corporate governance and firm performance in Russia: an empirical study

Using the agency and institutional perspectives, this study advances several hypotheses about the board structure–firm performance relationship within Russia. We tested these hypotheses using survey data. Despite a relatively small sample size, predictions from both theoretical perspectives were supported. Specifically, we found a negative relationship between “informal” CEO duality and firm performance. This finding is noteworthy given the 1996 Russian Federal law which prohibits the CEO from also serving as board chair. Also, we found that the more vigorously the firm pursues a retrenchment strategy, the more negative the relationship between proportion of inside directors and firm performance. Overall, these findings suggest that effective corporate governance may be essential to firm performance in Russia.     

海尔“人单合一”管理模式的演化路径及其价值实现机理——基于波粒二象性的理论视域

“人单合一”模式的演化路径可以用“人”“单”之间相互作用关系的变化过程进行描述,这一路径也可概括为“人的价值实现”从无到有地创生涌现,再形成一种独立力量,对“人单合一”体系以及各组织要素进行反向影响和塑造的过程。无论是表面上的二重性特征,还是在内涵层次、演化路径和发展趋势方面,“波粒二象性”与“人单合一”都具有紧密的对应契合性。文章在分析比较“波粒二象性”与“人单合一”对应契合关系的基础上,结合“人”与“单”之间由“分化对立”到“互补转化”再到“整合创新”关系转化的过程,分析阐释了海尔“人单合一”管理模式的演化路径及其价值实现机理。“波粒二象性”不仅为“人单合一”的内涵转变以及发展路径提供了机理解释,而且从跨学科的视角出发,为组织的管理实践与创新变革提供了思路启示。     

Asset Specificity and Vertical Integration

Asset specificity is usually considered to be an argument for vertical integration. The main idea is that specificity induces opportunistic behavior, and that vertical integration reduces the cost of preventing opportunism. In this paper I show that asset specificity can be an argument for non‐integration. In a repeated‐game model of self‐enforcing relational contracts, it is shown that when parties are non‐integrated, increasing degrees of asset specificity make it possible to design relational contracts with higher‐powered incentives.     

新型工业化与城乡二元工业化的协调发展

由于我国严重的“二元经济结构”和“双重演进”的制度变迁特征,形成了农村工业化和城市工业化同时并存的城乡二元工业化格局。城乡二元工业化格局在促进经济发展的同时,也形成了对经济发展的延迟效应。在新型工业化的实现过程中,既要实现以信息化带动工业化,又要推进城乡工业的协调发展,促进农业工业化的发展,加速完成经典工业化的任务。     

基于国际直接投资的城市竞争力研究——以长江三角洲为例

城市竞争力是区域竞争力的前沿阵地,提升城市竞争力是强化区域竞争能力的关键.基于FDI的区域城市群竞争力提升存在固有缺陷,据此研究了长江三角洲城市群竞争力提升中存在的不可避免的问题.并提出以提高城市竞争力为基础来提升城市FDI集聚能力,是长江三角洲所有城市必须认真面对的重要课题.     

Business suppliers' value creation potential : A capability-based analysis

Joint value creation through partnering and networking is a topic of current interest. This paper proposes that the dimensions of the supplier's value creation in a supplier-customer relationship could be classified according to efficiency, effectiveness and network functions. These functions are interrelated, but they are conceptually distinct. The value creation process could be described as a spectrum ranging from core value, to added value, to future value. The value-producing potential of a supplier can be assessed reasonably well only in the case of the core value, where there is sufficient benchmarking information in the form of existing alternative offerings and solutions. A priori evaluation of the costs and benefits of added value and, especially, future value projects is problematic, because the realisation of the value is dependent on the development of multiple partners, technologies and industries. In these cases, we suggest that a customer could use a supplier's capability profile as an indicator of how suitable that particular supplier is for specific value creation projects. A framework connecting specific capabilities to different types of value production is suggested, and its managerial implications are discussed.     

磁放大器的电流放大倍数分析方法

本文对三种磁放大器的电流放大倍数进行了分析,利用磁路与电路的对偶原理,给出了磁放大器的框图及电流放大倍数的统一表达式,并利用磁路定律对所求放大倍数进行了验证。