基于供应链收益共享契约的格子铺经营机制优化分析

格子铺经营模式已引起理论者和实践者广泛关注。针对格子铺经营模式的合作问题,在努力因素影响需求的市场环境里,基于供应链视角,通过建模与优化,分析了节点企业的决策特征与策略选择,讨论了收益共享机制对格子铺经营模式的影响,研究表明单纯的收益共享机制,无法实现格子铺经营模式的整体绩效最优(即由格主、铺主参与的供应链合作机制的协调),不能够改善格子铺合作;当对租金收取机制进行调整,使其为促销、广告投入的一定比例时,收益共享机制可以实现合作的协调,进而达到改善格子铺经营的目的。     

Attacking the Market Split Problem with Lattice Point Enumeration

The market split problem was proposed by Cornuéjols and Dawande as benchmark problem for algorithms solving linear systems with 0/1 variables. Here, we present an algorithm for the more general problem A · x = b with arbitrary lower and upper bound on the variables. The algorithm consists of exhaustive enumeration of all points of a suitable lattice which are contained in a given polyhedron. We present results for the feasibility version as well as for the integer programming version of the market split problem which indicate that the algorithm outperforms the previously published approaches to this problems considerably.     

Mixture experiments with mixing errors

In mixture experiments the properties of mixtures are usually studied by mixing the amounts of the mixture components that are required to obtain the necessary proportions. This paper considers the impact of inaccuracies in discharging the required amounts of the mixture components on the statistical analysis of the data. It shows how the regression calibration approach can be used to minimize the resulting bias in the model and in the estimates of the model parameters, as well as to find correct estimates of the corresponding variances. Its application is made difficult by the complex structure of these errors. We also show how knowledge of the form of the model bias allows for choosing a manufacturing setting for a mixture product that is not biased and has smaller signal to noise ratio.     

新生代农民工创业进入路径中的社会网络分析

创业进入路径的分化,必然导致新生代农民工创业者对于社会网络利用方式的转变。基于对新生代创业农民工的调研数据,实证分析了复制型创业和跃迁型创业两种不同进入路径中创业者对其社会网络的使用和效用,以及不同创业进入模式与初创经营绩效的关系。研究结果表明：在资金获得与生意获得过程中,复制型创业者和跃迁型创业者对于社会网络的使用具有差异性;社会关系网络使用的最重要作用是获得生意,并以此对首年经营绩效产生显著影响;先前拥有销售或管理经历、且受过更高教育的新生代农民工更有可能选择跃迁型创业模式,同时相较于复制型创业,他们展现出了更好的长期发展和利润获取能力。     

论高校马克思主义大众化的路径选择

路径选择是实现高校马克思主义大众化的关键。马克思主义理论课作为大学生思想政治教育的主渠道,在推进高校马克思主义大众化的进程中,居于主导地位。面对当前马克思主义理论课存在的诸多问题,积极优化理论课主导功能的同时,不断探索新的载体路径,是推进大学生思想政治教育工作,实现高校马克思主义大众化的根本所在。     

论词义感情色彩变化中的意义感染现象

词汇的感情色彩依附于词义,具有客观固定性和社会性,并且随着词义的变化,词汇的感情色彩也随之改变。从社会语言学的角度,首先提出“意义感染”的概念,继而重点分析词义感情色彩变化中的意义感染现象发生的两大主要途径。根据经济学上的“格雷欣法则”,最后对这类词汇的发展趋势做出了分析和预测。研究表明：意义感染后,词汇或是趋向于演变为禁忌语,继而慢慢退出历史舞台;或是作为委婉语,在言语交际中起到迂回作用。     

正交多项式回归模型参数估计的格子设计及其最小二乘估计

对二元二次多项式回归模型进行预先正交化处理，提出使用因子空间的N等份的格子设计的观点，推导出了信息矩阵的一般性结构，并给出了该设计的非退化条件及其最小二乘估计和对应的协方差矩阵。     

Beyond ‘Gender Differences’: A Canadian Study of Women's and Men's Careers in Engineering

This article explores the relationship between gender and career paths for a group of women and men who graduated as engineers during a period of labour market turbulence in western Canada during the 1980s. Using a model adapted from Brown (1982 ), the article uses ‘career path’ as a device to organize data drawn primarily from telephone and face‐to‐face interviews with 317 graduates. Three career paths provide the focus for the study: the ‘organizational’, characterized by stable employment with one employer; the ‘occupational’, characterized by mobility between employers; and the entrepreneurial, characterized by self‐employment. The use of the career path framework moves the study beyond global comparisons (of the dichotomized ‘gender differences’ kind) between ‘the women’ and ‘the men’. As well as allowing for comparison between the paths, it allows more refined and contextualized comparisons within each path. Such comparisons produce patterns of similarity and difference that sometimes transcend gender.     

弱连续格及其性质

给出了弱连续格的概念 ,讨论了弱连续格的若干重要性质 ,用分配性刻划了弱连续格     

基于知识转移的知识离散性演化路径研究

运用知识转移理论、网络组织理论的分析方法,提出了知识网络中知识离散性问题。构建了基于知识转移的知识离散性演化路径模型,按照知识转移速度和势差两个维度,将知识离散性分为4种类型,得出了知识离散性是沿着两条非线性路径演化的结论。