太极拳与瑜伽术的传统意蕴及其文化学阐释

中、印传统体育文化蕴含了东方文明对于处世之道和养身模式的价值追求，作为东方体育文化典型代表的太极拳与瑜伽术，既是修炼身心、运动健身的重要项目，也是人们了解东方体育文化的重要媒介。跨文化比较分析表明，太极拳和瑜伽术在注重身形技法与艺术审美的结合、吐纳导引与意念游动的耦合、修身养性与天人意境的融合等方面具有共性，也有差异，体现出中、印在传统体育文化方面的异同。太极拳和瑜伽术的传承应该做到与时俱进、创新发展，其目标既不是传统竞技搏击术，也不是简单修炼养身术，而是融道德修养与身心修炼为一体的综合性运动项目。     

信息不对称下价格随机的应急数量折扣契约研究

以市场需求和市场价格随机波动的二级供应链为研究对象，寻找其在信息不对称条件下绩效优化的路径。通过显示原理分别构建生产成本和销售成本信息不对称时应急供应链的数量折扣契约模型，得到最优订货量与最佳批发价策略。通过具体的算例加以验证，分析了信息不对称程度对供应链上成员及整个供应链绩效的影响。研究结果表明：当突发事件造成市场价格随机波动和市场需求变化时，供应链上的跟随者能从隐瞒私人信息中获利。但当市场需求增大时，整个供应链绩效受损，反之则反是。这与以往研究在市场需求随机、市场价格固定和信息不对称条件下的结论迥异。     

Leveraging psychological contracts as an HR strategy: The case of software developers

This article studies the management of software developers through the lens of the psychological contract and from the perspectives of employees and employers. Data were gathered through interviews with software developers and their human resources (HR) and/or direct managers in French high-tech companies. Our findings show the crucial role of HR and direct managers who shape a balanced professional psychological contract with developers as a specific HR strategy in order to respond to their job specificities and values. Specific HR practices (nature of the processes, involvement of developers in these processes, credibility of HR/direct managers and career development opportunities) and the working environment contribute to the development of trust and fairness, which form part of the content of the balanced contract.     

Poverty and educational achievement in the US: A less-biased estimate using PISA 2012 data

In the current paper, we employ the most recent Programme for International Student Assessment (PISA) data to calculate a less-biased estimate of poverty on US achievement. The PISA was specifically chosen as it is an assessment removed from a specific curriculum and instead focuses on concepts that students should know in order to participate in a global economy. Using a propensity score matching approach, our findings suggest that US students in poverty have notable educational attainment deficiencies compared to a matched group of students who are not in poverty. In other words, when we select two students who have a great deal in common but for the fact that one comes from a poverty background, the student in poverty is expected to perform nearly 28 points, or about a quarter of a standard deviation lower, on the PISA assessment. In real terms, this puts math achievement for children not in poverty on-par with the Organisation for Economic Co-operation and Development (OECD) average, while children in poverty are well below the OECD average.     

What influences the size of child maintenance payments? A register‐based study of maintenance payments in Finland

The aim of this study was to explore how particular economic and demographic factors contribute to the level of the child maintenance payment (CMP) paid by the non‐resident parent. For this study, we used 5‐year longitudinal panel data from years 2009 to 2013 consisting of over 80,000 non‐resident parents from the Finnish Tax Administration and The Finnish Population Register Centre. Results from regression models indicate that the single biggest factor affecting the size of CMPs is the number of dependent children. We found that the non‐resident parent's higher income is associated with higher CMPs and that non‐resident fathers pay on average larger CMPs than non‐resident mothers, even after accounting for differences in income. Unexpectedly, we found that the age of the dependent child did not predict changes in CMPs. This suggests that once formal CMP‐contracts are determined between the parents, they are seldom changed. Our results suggest that some degree of mandatory periodic review for maintenance contracts is worth considering.     

参加医疗保险对农村居民健康的影响——基于CHARLS 2015数据的实证分析

基于CHARLS 2015数据,采用倾向得分匹配法实证分析参加医疗保险对农村居民健康的影响。研究发现:参加医疗保险对农村居民的日常活动能力和自评健康影响不显著,参加医疗保险对农村居民认知能力具有显著的正向影响。据此提出,应进一步提升社会医疗保险保障水平、扩大社会医疗保险保障范围、促进商业医疗保险有序发展、推进"三医"高效协同联动等,以充分发挥医疗保险的健康保障功能,从而进一步提升参加医疗保险对农村居民健康的正向影响。     

乡村振兴背景下乡村教师工作满意度研究 ——基于心理契约的视角

乡村教师队伍建设是乡村振兴战略的重要内容，工作满意度是乡村教师队伍稳定性的“晴雨表”。从心理契约视角出发，以工作满意度为工具研究乡村振兴背景下乡村教师队伍建设问题。基于对224名乡村教师的问卷调查数据，分析当前乡村教师工作满意度及心理契约达成水平。研究表明：当前乡村教师工作满意度居于中等水平；乡村教师心理契约总体达成水平较高，但存在结构失衡问题，其中教师责任达成水平高于学校责任达成；心理契约对乡村教师工作满意度有显著正向影响，心理契约学校责任对工作满意度的影响力大于心理契约教师责任。提出双向互动，构建良好心理契约；主动干预，强化心理契约引导；分类施策，满足教师差异需求；协同发展，均衡心理契约结构等建议。     

分贷统还合同的法律性质与违约风险化解

分贷统还合同为政府通过合约统一贴息实现了扶贫资金的公司化运作，有效地发挥财政扶贫资金的整体效益，但也产生了合同法律性质认定争议大、合同履行易受政策变化影响；户贷企用导致贷款用途和资金安全存在风险，公司分红还款系统性违约等弊端，如公司经营不善，贷款亏空，一旦出现系统性违约，不仅影响农村社会稳定和政府公信力，司法机关亦将面临纠纷批量涌入的现实问题。为趋利避害，分贷统还合同有必要在综合衡量扶贫目的、公司盈利及扶贫责任和银行资金安全的基础上，调整户贷企用政策，甄别债权类型，考虑违约的具体情势，从实操层面化解分贷统还合同违约风险。     

交易特性、社员身份与农业合作社合约选择

在威廉姆森交易成本理论的基础上，探讨交易特性对农业合作社与农户之间合约选择的影响，发现社员身份特征在其中发挥调节作用。研究结果表明，资产专用性、风险性和规模性对农业合作社与农户之间签订一体化程度不同的合约具有明显的影响，其中，专用性对合约一体化程度的影响是正向的；而风险性和规模性对双方签订一体化程度更高的合约影响是负向的。但和非社员相比，股东身份使资产专用性对双方签订一体化程度更高合约的正向影响作用变大；并使风险性、规模性对双方签订一体化程度更高合约的负向影响作用变小，即股东身份作为调节变量发挥了显著效应。     

Optimal asset allocation for participating contracts with mortality risk under minimum guarantee

Abstract

We investigate an optimal investment problem of participating insurance contracts with mortality risk under minimum guarantee. The insurer aims to maximize the expected utility of the terminal payoff. Due to its piecewise payoff structure, this optimization problem is a non-concave utility maximization problem. We adopt a concavification technique and a Lagrange dual method to solve the problem and derive the representations of the optimal wealth process and trading strategies. We also carry out some numerical analysis to show how the portfolio insurance constraint impacts the optimal terminal wealth.