新生代农民工信息获取障碍及影响因素研究——兼与老一代农民工的比较

以"需求层次理论"为依据,将农民工的信息需求从低到高分为物质信息、安全信息、尊重信息、自我实现信息四类,分别考察了四类信息的获取障碍。农民工的信息获取普遍存在较大障碍,层次越高的信息障碍越大;新生代农民工不同亚群体在信息获取障碍方面存在差异;信息环境、社会融合、信息费用是新生代农民工信息获取障碍的主要影响因素,两代农民工的影响因素同中有异。     

新型城镇化与农业现代化:第一代农民工的转移取向及其多元影响——四川省调研数据的实证

基于对四川省内江市和遂宁市309名第一代农民工的抽样抽查,运用二元Logit模型,实证检验了个体、家庭、务工等特征对第一代农民工转移取向的作用机制和影响程度。基于其转移取向的差异性,分析了不同转移行为可能对我国新型城镇化和农业现代化进程产生的多元影响。针对层次性转移特点,提出差异化的支持政策,以使其流动更加平稳有序。     

新生代农民工就业质量影响因素的实证分析

利用浙江省969个新生代农民工样本数据,采用有序回归模型分析了影响新生代农民工就业质量的影响因素。研究结果表明,新生代农民工人力资本、职业认同、个人适应性以及企业录用政策、企业培训政策、政府培训供给量和政府培训有效性均对新生代农民工就业质量具有显著的影响;但新生代农民工社会资本和企业薪酬政策对新生代农民工就业质量没有显著的影响。     

The effects of wind generation capacity on electricity prices and generation costs: a Monte Carlo analysis

We use Monte Carlo analysis to examine the potential of increased renewable generation to provide a hedge against variability in energy prices and costs. Fuel costs, electricity demand and wind generation are allowed to vary and a unit commitment and economic dispatch algorithm is employed to produce cost-minimizing generation schedules under different levels of installed wind capacity. Increased wind capacity reduces the mean and the variance of production costs but only the variance of electricity prices. Wind generators see their market revenues increase while consumer payments and fossil generator profits do not considerably vary as wind capacity increases. Risk aversion is captured by considering the conditional value-at-risk for both consumers and producers. The optimal level of wind generation increases as risk aversion increases due to the potential of wind to act as a hedge against very high electricity prices in high fuel price scenarios.     

基于表达/掌握知识矩阵的知识生成转化路径与方式研究

通过考查隐性知识与显性知识的三种划分标准,依据中文语境/语义将其梳理成递阶三层结构;发现半个世纪以来被学术界忽视的波兰尼是否已表达标准具有二维性,并以此为标准构造了表达/掌握知识分类矩阵模型,揭示出非波兰尼隐性知识和非波兰尼显性知识的客观存在性;利用表达/掌握知识矩阵重新剖析了知识生成/转化中呈现出的新机制、新途径、新方式,改进了野中郁次郎教授的SECI螺旋模型。     

新生代员工为何频频离职——基于组织公平视角的实证研究

以新生代员工为研究对象,基于组织公平视角,将组织认同和权力距离有机整合,构建分配公平、程序公平和互动公平三种组织公平影响新生代员工离职倾向的理论模型,即分析组织认同和权力距离在三种组织公平影响新生代员工离职倾向形成过程中的中介效应和调节效应,并提出相应的研究假设。通过对收集到的376份有效样本数据进行统计分析,研究结果表明:三种组织公平对新生代员工离职倾向有显著的负向影响,影响效果由强到弱依次为互动公平、程序公平和分配公平;组织认同在分配公平和互动公平对新生代员工离职倾向关系间起着部分中介作用,组织认同在程序公平与新生代员工离职倾向间起着完全中介作用;权力距离正向调节分配公平、程序公平和互动公平对新生代员工离职倾向的影响作用,即权力距离导向越低,这三种组织公平与离职倾向间关系越强。     

中国城镇住宅市场世代细分实证研究

随着中国城镇住房市场的发展，住房市场细分的研究变得越来越有理论价值和现实意义。根据世代细分理论，中国城镇住房消费者可分为五个世代，在此基础上以中国2000年人口普查资料抽样数据为依据的实证研究表明，此世代细分标准在中国城镇住宅市场具有适用性和可行性。     

Do science and money go together? The case of the French biotech industry

Developing technological applications, entering exploitation alliances, and choosing between research‐ or service‐focused strategic orientations are decisions that high‐tech firms must manage concurrently. This article explores systematically the contrasting effects of these strategic determinants on rent generation and rent appropriation using the entire population of French biotech firms (1994–2002). Findings indicate that science and money do not unconditionally go together–the direct relationship between rent‐accruing resources (e.g., patents or articles) and rent appropriation varies depending on the type of resources and the strategic orientation. Moreover, the effects of strategic determinants differ for rent generation vs. rent appropriation: 1) technological application diversity undermines a firm's capacity to appropriate rents–in particular for research‐oriented firms; 2) exploitation alliances favor rent generation but hinder rent appropriation; 3) service‐oriented firms exhibit significantly better performance than research‐oriented firms. Such evidence challenges the emergence in the biotechnology industry of a ‘one‐best’ strategic trajectory, as represented by research‐intensive start‐ups funded by private money engaged in publishing and patenting races. Copyright © 2008 John Wiley & Sons, Ltd.     

A general framework for approximate sampling with an application to generating points on the boundary of bounded convex regions

We consider the problem of generating a sample of points according to some given probability distribution over some region. We give a general framework for constructing approximate sampling algorithms based on the theory of Markov chains. In particular, we show how it can be proven that a Markov chain has a limiting distribution. We apply these results to prove convergence for a class of so-called Shake-and-Bake algorithms, which can be used to approximate any absolutely continuous distribution over the boundary of a full-dimensional convex body.     

Effects of relay rounds on idea generation of 3-person-subgroup： An experimental study

We suggested a new factor in group idea generation studies, relay rounds. A relay in idea generation groups was defined as a process in which the next group generates ideas on the basis of previous groups＇ work. We investigated 55 3-person-groups as subjects and discussed how the quantity of the nominal and unique ideas, the change of the quality of the ideas and satisfaction of the members in these groups were influenced as relay rounds gradually raised from 1 to 11. Then, we tried to find how many relay rounds would allow the best performance. We found that as the number of rely rounds increased, the quantity of a single group＇s nominal and unique ideas reduced accordingly. However, the overall quantity of nominal and unique ideas and the quality of unique ideas increased while the satisfaction degree of group members didn＇t change significantly. Results showed that under the situation of this study, a seven-round relay was the best.