管制下的企业行为与绩效分析

自然垄断行业需要政府管制,但受管制企业由于缺乏竞争容易产生低效率的弊端。如何确立自然垄断行业中的政府职能, 政府如何对自然垄断行业进行适度管制以提高其效率已成为国有企业改革进程中的新课题。本文通过对具有竞争结构的国有企业改革过程的考察, 分析了政府管制与企业效益的关系, 通过对市场进入管制下企业行为的描述, 讨论了政府管制对社会福利的影响及可能引发的社会成本。针对政府管制可能产生的低效率情况, 探讨了管制改革的对策及管制改革的效率目标     

浅谈对流动人口的计划生育管理

流动人口计划生育管理是一项重要的、长期而又艰巨的工作。要有效地抓好这一工作,必须紧密依靠人口流出地和流入地的相互配合,建立统一的、有权威的流动人口管理机构,实行凭证管理、归口管理,使这一管理规范化、法制化。同时,注重对流动人口的计划生育教育,发挥他们自我管理的作用。     

高校科研的价值追求

高校科研具有多种价值.但在特定条件下,高校及教师对科研价值的追求,往往容易单一化,这不利于高校提高知识生产率以适应知识经济的需求.作为一个整体,高校科研应重视学术、经济、社会和教育价值的综合研究.单项科研难以兼顾学术价值与社会经济价值,但可以而且应该追求教育价值.为此,在科研管理和教学上采取调控措施是必要的.     

在CAI系统设计中用模糊控制方法设计教学行为

将CAI系统设计的问题归纳为两类 :一类是教学内容的表达和组织 ,另一类是教学行为的设计和运用 ,文中主要将模糊控制方法、面向对象的系统分析技术及教育学理论和实践相结合讨论后者的问题 ,并特别针对课堂教学行为的设计问题提出了一套完整的模型 ,如控制对象、学科知识库、教学经验知识库和模糊推理等等     

I~2C总线与PC机接口设计

介绍一种简单、成本低的 I2 C总线与 PC机的接口卡 ,普通微机便可以与 I2 C系列的外接设备数据传输 ,构成一个工业自动化生产过程的监控系统     

激光连续探测系统虚警数控偏压源的设计

基于偏压的虚警控制原理 ,设计了一种自动跟踪雪崩管击穿电压的数控偏压电路 ,该电路不仅使偏压的建立速度和控制精度得到较大提高 ,而且适用于背景光强和环境温度大幅度变化的连续探测的光电系统     

Social Disorganization and Parochial Control: Religious Institutions and Their Communities

Set within the framework of social disorganization theory, this article explores the relationship between social disorganization and parochial control. Specifically, this study investigates whether more disorganized communities support fewer religious institutions than less disorganized areas. It also examines the relationship between religious institutions and another type of community association: multi-issue, neighborhood-based organizations. Data are drawn from 1990 Census data, the 1991 Chicago telephone directory and local community organization directories. Findings support the idea that residential mobility and ethnic heterogeneity are negatively related to the prevalence of religious institutions whereas there is a curvilinear relationship between poverty and religious organizations. Finally, a strong relationship between the prevalence of religious institutions and the prevalence of multi-issue organizations is established.     

Nonparametric Identification under Discrete Variation

This paper provides weak conditions under which there is nonparametric interval identification of local features of a structural function that depends on a discrete endogenous variable and is nonseparable in latent variates. The function delivers values of a discrete or continuous outcome and instruments may be discrete valued. Application of the analog principle leads to quantile regression based interval estimators of values and partial differences of structural functions. The results are used to investigate the nonparametric identifying power of the quarter‐of‐birth instruments used in Angrist and Krueger's 1991 study of the returns to schooling.     

基于非线性理论的企业市场价值取向战略研究

针对传统企业对市场价值的线性思维模式,利用非线性理论建立了基于Logistic方程的市场价值模型,以及企业内部市场领先战略与技术领先战略模型;通过模型分析了实施单一市场领先战略或技术领先战略企业的发展前景;提出了企业市场价值取向的双绞线均衡战略及战略动态控制要求.     

A new approach for disclosure control in the IAB establishment panel—multiple imputation for a better data access

For micro-datasets considered for release as scientific or public use files, statistical agencies have to face the dilemma of guaranteeing the confidentiality of survey respondents on the one hand and offering sufficiently detailed data on the other hand. For that reason, a variety of methods to guarantee disclosure control is discussed in the literature. In this paper, we present an application of Rubin’s (J. Off. Stat. 9, 462–468, 1993) idea to generate synthetic datasets from existing confidential survey data for public release.We use a set of variables from the 1997 wave of the German IAB Establishment Panel and evaluate the quality of the approach by comparing results from an analysis by Zwick (Ger. Econ. Rev. 6(2), 155–184, 2005) with the original data with the results we achieve for the same analysis run on the dataset after the imputation procedure. The comparison shows that valid inferences can be obtained using the synthetic datasets in this context, while confidentiality is guaranteed for the survey participants.