基于CES生产函数的三次产业间资源优化配置均衡分析

规模收益不变型柯布—道格拉斯生产函数是不变替代弹性（CES）生产函数的特殊情形,本文利用不变替代弹性（CES）生产函数建立了三次产业资源优化配置模型,推广了王文举（2010）的成果,给出了三次产业间资本和劳动力配置均衡的必要条件,借以说明在我国劳动力从第一产业向第二、三产业流动的合理性和经济学机理。     

Empathic emotion and leadership performance: An empirical analysis across 38 countries

The purpose of our research is to examine the relationship between subordinate ratings of a target-leader's empathic emotion and boss ratings of performance of that target-leader. Furthermore, using hierarchical linear modeling, we assess whether the cultural background of the target-leader moderates this relationship. Our results show that leaders who are rated by their subordinates as engaging in behaviors that signal empathic emotion are perceived as better performers by their bosses. In addition, we found that the GLOBE societal culture dimension of power distance was a significant cross-level moderator of the relationship between empathic emotion and performance. Implications for leading in cross-cultural and multicultural contexts are discussed.     

中国政府卫生支出的最优规模及其实现

笔者运用中国1978年至2009年政府卫生支出与GDP等相关数据,对政府卫生支出的性质、最优规模及实现进行了实证分析。研究结论表明:政府卫生支出是生产性支出;目前中国政府卫生支出规模不足,其最优规模应占GDP的11.9%;政府卫生支出的边际产出随其规模负向变动;当年人均GDP与上年政府卫生支出水平对当年政府卫生支出水平具有显著影响。笔者在最优取向增长模型中预测了2011年至2020年各年政府卫生支出规模,希望为动态实现政府卫生支出最优规模提供合理途径。     

刻意含混话语理解的认知语用视角

尝试互补性地使用心理空间理论和关联理论来探讨刻意含混话语的认知理解过程。心理空间理论能有效地展示刻意含混含有的语用用意的构建过程,而关联理论可为刻意含混表达的语用用意提供最佳关联解释。听话人通过语用推理,可较好地理解刻意含混话语的交际意图,使交际更加顺畅地进行。     

我国装备制造业上市公司资本结构影响因素研究

对装备制造业上市公司资本结构的影响因素进行研究,从宏观、微观两个层面将变量细化拓展至多个三级指标,采用因子分析、多元线性回归方法找出我国装备制造业上市公司资本结构的正向、负向及不定向影响因素,得出各个因素的影响方向和程度并分析潜在原因,由此对我国装备制造业上市公司资本结构优化提出相应建议。     

北京城中轴线申遗与文物保护

＂线性遗产＂是世界文化遗产关注的新领域。所谓＂线性＂就是文化遗产或景观呈现＂线路＂形式或形态。＂线性遗产＂也包括三种形态：线性历史文化遗产、线性自然景观遗产、线性自然和人文景观融合的遗产。应该说,这三种遗产北京都有,其中最突出最引人注目的是北京城中轴线。北京城中轴线南起永定门,北止钟楼,全长7.86公里,是北京城呈现线路最长、文物景观最多的线性历史文化遗产。这条城市中轴线规划设计和营建开始于元大都城,历经元、明、清、民国直至中华人民共和国,有将近千年的历史,凝聚了北京城市文化发展的精髓,是北京城最壮美的进行曲,是关乎北京人文、政治、道德、教化、建筑的智慧线,是北京城从古代奔向未来的生命线,保护好中轴线,就是保护好北京城。     

合同线性化与线性化合同

本文讨论了不对称信息下委托代理关系中合同的线性化与线性化的合同。我们的出发点是代理人之间的能力差异,由此诱发了同时存在的逆向选择和道德风险问题,为处理这一问题我们得到一个产出呈凹性的支付合同,并对其线性化,考虑到这一参数线性合同系的不稳定性,我们最终以无参数的线性合同来替代,从而更为接近现实中使用的合同。     

Integrated scheduling and inventory management of an oil products distribution system

The oil supply chain is facing new challenges due to emerging issues such as new alternative energy sources, oil sources scarcity, and price variability with high impact on demand and production and profit margins reduction. Additionally, the existence of large, complex and world wide spread businesses implies a complex system to be managed where distribution can be seen as one of the key areas that needs to be efficiently and effectively managed. Different types of distribution modes characterize the oil supply chain where the pipeline mode is one of the most complex to operate when having multiproduct characteristics. This paper addresses the planning of a generic oil derivatives transportation system characterized by a multiproduct pipeline that connects a single refinery to a storage tank farm. Two alternative mixed integer linear programming models (MILP) that aim to attain a set of planning objectives such as fulfilling costumers’ demands (which is mandatory) while minimizing the medium flow rate are developed. Additionally, final inventory levels are avoided to be excessively low. A real world scenario of a Portuguese company is used to validate and compare the two alternative MILP models developed in this paper.     

Green supply chain management practices in India: an empirical study

This paper presents an empirical study of green supply chain management (GSCM) practices in the Micro, small and medium enterprises (MSMEs) in India. Although the research in the area of GSCM has grown in recent times, the literature has yet to furnish an accepted explanation for why green practices are to be manifested in supply chain management given external and internal pressures. These MSMEs have been involved in such green supply chain practices only to the extent of their participation as suppliers, distributors and in other capacities as business partners. This study confirms and validates that Indian MSMEs face significant pressures from external stakeholders to adopt GSCM practices. Among internal pressures, on-the-job training forces MSMEs in India to adopt GSCM practices. It has been also established that external pressures and adoption of GSCM are fully mediated by internal pressures.     

考虑奖惩机制和成本互担的众包物流服务质量最优控制

研究动态视角下服务平台和接包方如何控制众包物流服务质量的问题。引入众包物流服务质量标准,考虑奖惩机制和成本互担契约,构建了众包物流服务质量控制的微分博弈模型,利用庞特里亚金极大值原理求解出双方的最优质量控制水平、利润以及众包物流服务质量和需求随时间变化的最优轨迹。研究表明：服务价格在集中、分散和成本互担三种决策情形的物流服务过程中都保持不变;成本互担契约情形下,通过控制成本互担比例,服务质量、需求和总利润均能达到集中式情形的最优值,而且当奖惩因子满足一定条件时,双方利润相较于分散式情形都能得到改善;奖惩因子和佣金率的提高会增加接包方提升质量控制水平的积极性,但服务平台出于节约成本的目的会降低自身的质量控制水平,而仅依赖接包方较高的质量控制水平提高物流服务质量;当众包物流服务质量标准超过一定值时,奖惩因子的提高会造成服务平台利润的增加,接包方利润的减少。