论褚伯秀《南华真经义海纂微》注庄“视脚”

褚伯秀的《南华真经义海纂微》纂集了从西晋的郭象至南宋的林希逸等十三家注,是现存最早的《庄子》集注作品。该书纂集众注,断以己意;兼顾音训,注重义理;擘肌分理,唯务折衷,在庄学研究史上意义重大。褚伯秀身为道教中人,却以独特之“视脚”涵摄了儒释道诸多视角,努力克服以偏概全、挂一漏万的弊端,他的这种通化的根性值得我们重视。     

印度对中印跨境河流水关系的认知及战略选择

近年来,印度对中印在跨境河流水关系中的不平衡问题非常重视.其中,水文信息不对称以及收益不平衡是印度对水关系不平衡的两个主要认知.基于中印边境的互动历史,印度在对水关系的认知形成中往往会夸大中国的敌意与威胁.据此,印度试图通过建立制度框架、将中印水争议国际化以及竞争性开发跨境河流水资源的战略思维,平衡中国在雅鲁藏布江—布拉马普特拉河水关系中的优势地位.然而受水外交两面性特征和内政的掣肘,印度平衡战略的影响有限,而且更强化了其对雅鲁藏布江—布拉马普特拉河战略安全收益的重视,并使未来中印双方基于水资源共同利益进行合作的难度加大.     

The heterogeneous impact of pension income on elderly living arrangements: evidence from China’s new rural pension scheme

This paper investigates the impact of pension income on living arrangements of the elderly. Taking advantage of a unique opportunity due to the recent establishment and expansion of the New Rural Pension Scheme in China, we explicitly address the endogeneity of pension status and pension income through a fixed-effect model with instrumental variable approach by exploiting exogenous time variation in the program implementation at county level. We find an overall positive effect of pension income on independent living as well as considerable heterogeneity. The positive income effects of the NRPS are concentrated among the elderly with adult children living nearby, of higher socio-economic status, and with better health at baseline; for other groups, the effects are insignificant. We also find that more generous programs exhibit larger effects. Our results highlight that living arrangement is multidimensional in rural China.     

Educational Assortative Mating and Income Dynamics in Couples: A Longitudinal Dyadic Perspective

The question of how educational assortative mating may transform couples' lives and within‐family gender inequality has gained increasing attention. Using 25 waves (1979–2012) of data from the National Longitudinal Survey of Youth 1979 and longitudinal multilevel dyad models, this study investigated how educational assortative mating shapes income dynamics in couples during the marital life course. Couples were grouped into three categories—educational hypergamy (wives less educated than their husbands), homogamy, and hypogamy (wives more educated than their husbands). Results show that change in husbands' income with marital duration is similar across couples, whereas change in wives' income varies by educational assortative mating, with wives in educational hypogamy exhibiting more positive change in income during the marital life course. The finding that husbands' long‐term economic advancement is less affected than that of wives by educational assortative mating underscores the gender‐asymmetric nature of spousal influence in heterosexual marriages.     

Approximation strategy-proof mechanisms for obnoxious facility location on a line

In the facility location game on a line, there are some agents who have fixed locations on the line where an obnoxious facility will be placed. The objective is to maximize the social welfare, e.g., the sum of distances from the facility to all agents. On collecting location information, agents may misreport the locations so as to stay far away from the obnoxious facility. In this paper, strategy-proof mechanisms are designed and the approximation ratio is used to measure the performances of the strategy-proof mechanisms. Two objective functions, maximizing the sum of squares of distances (maxSOS) and maximizing the sum of distances (maxSum), have been considered. For maxSOS, a randomized 5/3-approximated strategy-proof mechanism is proposed, and the lower bound of the approximation ratio is proved to be at least 1.042. For maxSum, the lower bound of the approximation ratio of the randomized strategy-proof mechanism is proved to be 1.077. Moreover, a general model is considered that each agent may have multiple locations on the line. For the objective functions maxSum and maxSOS, both deterministic and randomized strategy-proof mechanisms are investigated, and the deterministic mechanisms are shown to be best possible.     

Bounds on the domination number of a digraph

A vertex subset S of a digraph D is called a dominating set of D if every vertex not in S is adjacent from at least one vertex in S. The domination number of D, denoted by \(\gamma (D)\), is the minimum cardinality of a dominating set of D. The Slater number \(s\ell (D)\) is the smallest integer t such that t added to the sum of the first t terms of the non-increasing out-degree sequence of D is at least as large as the order of D. For any digraph D of order n with maximum out-degree \(\Delta ^+\), it is known that \(\gamma (D)\ge \lceil n/(\Delta ^++1)\rceil \). We show that \(\gamma (D)\ge s\ell (D)\ge \lceil n/(\Delta ^++1)\rceil \) and the difference between \(s\ell (D)\) and \(\lceil n/(\Delta ^++1)\rceil \) can be arbitrarily large. In particular, for an oriented tree T of order n with \(n_0\) vertices of out-degree 0, we show that \((n-n_0+1)/2\le s\ell (T)\le \gamma (T)\le 2s\ell (T)-1\) and moreover, each value between the lower bound \(s\ell (T)\) and the upper bound \(2s\ell (T)-1\) is attainable by \(\gamma (T)\) for some oriented trees. Further, we characterize the oriented trees T for which \(s\ell (T)=(n-n_0+1)/2\) hold and show that the difference between \(s\ell (T)\) and \((n-n_0+1)/2\) can be arbitrarily large. Some other elementary properties involving the Slater number are also presented.     

创新网络嵌入与高技术企业研发人员创新绩效关系研究

 创新驱动的实质是人才驱动,企业技术管理的重要核心之一是人员管理。研发人员是高技术企业的核心人力资本和主导资源,具有典型的稀缺性、创造性、主导性、体验性以及高信息需求等异质性特征,能否采取切实有效措施满足研发人员的异质性需求,激活其创新潜力和活力,是提升高技术企业创新绩效和管理技术人员的关键。        聚焦于高技术企业研发人员的异质性需求特征,运用创新网络嵌入理论,提出创新网络嵌入、创新效能感与创新绩效的关系假设模型;借鉴成熟量表,设计相关测量变量的调查问卷;利用Spss 19.0和Amos 21.0软件,对北京、上海、武汉、广州等地高技术企业研发人员的269个调查数据进行分析,考察创新网络嵌入对研发人员创新绩效的影响和作用机理,并验证创新效能感的中介作用。        研究结果表明,高技术企业研发人员的创新网络结构嵌入对创新过程和创新结果均具有显著正向影响,而关系嵌入仅对创新过程具有正向影响;创新网络结构嵌入和关系嵌入对创新效能感均具有显著正向影响,创新效能感对创新过程和创新结果具有显著正向影响;创新效能感在研发人员结构嵌入和关系嵌入对创新过程的影响中起完全中介作用,在结构嵌入对创新结果的影响中起部分中介作用。        从技术人员创新绩效管理的微观视角入手,探究高技术企业研发人员创新绩效的内涵、实质和影响因素,对高技术企业研发人员的创新网络嵌入与创新绩效的关系、创新效能感的中介作用以及创新网络嵌入与创新绩效的关系研究中关系嵌入悖论进行实证检验和解读,提出提升高技术企业研发人员创新绩效的创新网络嵌入式开发策略,包括聚焦产学研战略协同和集群创新、强化关系网络建设和位置管理、营造宽松氛围以提升创新效能感等。     

劳动参与率与劳动力增长:1982～2050年

劳动参与率是影响劳动力变化的三要素之一。它一方面具备相对稳定的模式,另一方面又受到一系列个人和外部因素的影响。文章基于普查数据,着重分析了劳动参与的年龄模式和主要影响因素,并预测了未来劳动力的发展趋势。结果发现,中国劳动参与年龄模式正趋向于稳定的倒U形,存在着明显的性别、城乡差异。回归结果表明,高中以上受教育程度可大大提高劳动参与,特别是女性的劳动参与,表明人力资本是未来劳动力发展的一个根本因素。预测结果显示,劳动力规模10年后将不可避免地出现负增长,同时中老年劳动力的比重也会大幅上升。对此,应采取相应措施以减轻劳动力变化所带来的震荡。     

民族概念三题

本文通过对汉语民族概念的模糊性,斯大林所论述的民族概念的外延与内涵,以及民族概念的政治属性等三个问题展开讨论,认为:第一,汉语民族概念实际表述着中华民族和构成中华民族的56个民族两个层次人们共同体的含义;第二,斯大林所定义的民族(нация)概念指的是汉语民族概念的第一层次,即中华民族这一层次的人们共同体;第三,不论是中华民族层次还是构成中华民族的56个民族层次的人们共同体都具有政治性,但是,两者的政治属性具有层次性,即前者的政治性与国家相关,而后者的政治性则与地方自治相联系。     

“90后”大学生信息获取渠道与价值观的形成研究

"90后"大学生、出生成长在信息时代,信息获取渠道的多元化对他们的价值观形成造成较大的影响。其中,值得关注的影响有:信息焦虑与价值认同的矛盾、道德价值观体现传承特性、政治热情与冷漠并存、人生价值的媒介之"伤"等。因此,要净化媒介环境,提高"90后"大学生媒介素养,实现价值观教育的功能一致性,以强化主导价值观的引导作用。