Randomized Response, Statistical Disclosure Control and Misclassificatio: a Review

This paper discusses analysis of categorical data which have been misclassified and where misclassification probabilities are known. Fields where this kind of misclassification occurs are randomized response, statistical disclosure control, and classification with known sensitivity and specificity. Estimates of true frequencies are given, and adjustments to the odds ratio are discussed. Moment estimates and maximum Likelihood estimates are compared and it is proved that they are the same in the interior of the parameter space. Since moment estimators are regularly outside the parameter space, special attention is paid to the possibility of boundary solutions. An example is given.     

建设工程实施阶段的工程质量DEA评价

在建立工程质量评价指标体系的基础上,构建了工程质量评价DEA评价模型,给出了工程质量评价模型的步骤及评价标准,并以某单位工程在施工阶段的12个分部工程为例,进行了建设项目的质量实证评价,对有效的分部工程进行排序,对非有效的分部工程针对不足的地方提出了改进措施。通过评价,可以总结出在管理过程中的经验与教训,以便管理者进行剖析与总结,从而有效地对工程质量进行控制。     

Simple methods for uncapacitated facility location/allocation problems

Facility location/allocation problems are encountered in many different areas of management science. The methods presented in the literature are complex and are not easily understood by practitioners who are not trained in the techniques of optimization. Simple heuristic methods are presented in this article. The methods are developed for three different types of uncapacitated problems: (1) unlimited facility capacity with no fixed cost; (2) unlimited facility capacity with a fixed cost for assignment; (3) multiperiod problems. Examples are included to illustrate the basic methods.     

Applications of parameters of shape to statistical distributions

Several new parameters characterizing the shape of statistical distributions are discussed. These parameters have earlier been considered for characterization of the shape of territories. By means of these parameters we describe general spread and spread along the axes, as well as asymmetry, of univariate theoretical and empirical distributions. General formulas for the parameters are given, and the particular formulas for the most of the common theoretical distributions are also listed. Some numerical values are tabulated, to illustrate their usefulness. Affine transformations are considered, and many applications and extensions are hinted upon.     

当代城市化机理模型研究的比较与融合

纵观我国城市化的研究,基础性的理论研究相对较少,建立的模型多以静态为主,缺乏动态演化特征,特别是定量的机理性数学模型和模拟并不多见,研究的方法也创新不足.首先从发展经济学和空间经济学两种经济学视角对城市化主要研究模型进行评述,其次从基于agent建模(ABM)的复杂科学途径对当代我国城市化研究的主要内容展开剖析,认为我国城市化研究需要方法的创新与融合,指出结合经济学研究成果和ABM动态化的优势,进行以新古典城市化理论为基础的"广义"和以新经济地理学为基础的"狭义"融合尝试,是城市化机制研究瓶颈的突破.按照"经济学演绎模型与推导一基于agent的计算实验一实证分析与计量检验一政策分析与评估"的研究思路是一个值得探索的方向.     

Strategies for successful organizational downsizing

This article reports the results of a study of 30 organizations that engaged in downsizing over a four-year period. Three questions were investigated: (1) What general strategies are used by organizations to downsize? (2) What are the effects of downsizing on organizational performance? (3) What are downsizing's “best practices?” or, What are the differences between organizations that effectively downsize and those that do not? Three main strategies for downsizing are explained, the managerial actions to overcome the negative effects of downsizing are enumerated, and the best practices of successful downsizing firms are presented.     

标准体系方法论中程序模块的理论和方法

本文对标准体系方法论中核心程序模块的理论和方法进行了深入的分析,研究建立了标准体系目标分析的纵横目标分析方法,建立了标准体系的三维目标空间,构建了结构化和概念化的标准对象系统,建立了目标关联的标准需求分析方法,定位了标准适用性分析的对象和判据项目,在标准体系结构设计方面引入了标准体系拓扑结构,丰富了标准体系结构设计的选择,给出了技术标准、管理标准、工作标准区分的要点,制定了标准体系表的编制方法,确定了标准体系研究报告和编制说明的编写方法等,明确了标准体系构建的成果形式。     

青岛滨海广场研究与分析

滨海广场是城市最具特色的"会客厅",从某种意义上说,体现了滨海城市的风貌和灵魂,展示了滨海城市生活模式和文化内涵。本文对青岛滨海广场进行实地考察研究,对广场使用现状进行评价,对滨海广场建设取得的成果给予肯定,同时剖析广场存在的问题,提出改造建议。     

Measuring regional efficiency: A method tested on the fabricated metal products industry in Sweden, 1973–1975

This paper presents a method of measuring the efficiency of regions as production environments of manufacturing industries. The approach is a rather general view of the firm in a market economy. The functions which the firms must perform are discussed. From that, hypotheses are made regarding the elements of the environment which should constitute the regional production milieu and thus influence the efficiency of the firms. By way of factor analysis the original variables are reduced to seven regional factors, which are put into productivity functions where their parameters are estimated. From those parameters indexes of regional efficiency are calculated.     

The effect of property taxes on urban areas

The effects of property taxes on urban areas are studied relative to a local wage tax. The changes in urban population and in the consumption and price of housing are determined in cities with various types of production sectors. Distortions in the composition of housing and residential density patterns are also reported. Examples are constructed to quantify the size of the changes and test whether property taxes are capitalized into land values.     

Computer‐Aided Statistical Instruction—Multi‐Mediocre Techno‐Trash?

The very soul of statistics are data, but few students actually collect data as part of their statistical journey. The impediments to real data collection exercises are very real—they are logistically difficult to set up, expensive, and may not work because of extraneous events outside the control of the instructor. Computer‐aided laboratories are a way to bring many of the benefits of actual data collection to students at a fraction of the cost and can be easily controlled by the instructor. There are many computer‐aided modules available—indeed a search on Google gave over 1 million hits. Some modules are good but many are mediocre. What separates the gems from the trash?     

Economic designs of single and double screening procedures

Summary Economic designs of single and double screening procedures for improving outgoing product quality based on two screening variables are presented for the case of one-sided specification limit. Two screening variables are observed simultaneously in single screening procedure and are observed sequentially in double screening procedure. It is assumed that the performance variable and the two screening variables are jointly normally distributed. Three quality cost functions — constant, linear, and quadratic — are considered. Cost models are constructed which involve screening inspection cost, and costs of accepted and rejected item. Methods of finding the optimal cutoff values are presented and a numerical example is given.     

Frequency Domain Tests for Residual Serial Correlation in Cointegration Regressions

This paper introduces tests for residual serial correlation in cointegrating regressions. The tests are devised in the frequency domain by using the spectral measure estimates. The asymptotic distributions of the tests are derived and test consistency is established. The asymptotic distributions are obtained by using the assumptions and methods that are different from those used in Grenander and Rosenblatt (1957) and Durlauf (1991). Small-scale simulation results are reported to illustrate the finite sample performance of the tests under various distributional assumptions on the data generating process. The distributions considered are normal and t-distributions. The tests are shown to have stable size at sample sizes as large as 50 or 100. Additionally, it is shown that the tests are reasonably powerful against the ARMA residuals. An empirical application of the tests to investigate the ‘weak-form’ efficiency in the foreign exchange market is also reported.     

Human resource management practices and corporate entrepreneurship: an empirical assessment from the USA

In this article, the relationship between human resource management and corporate entrepreneurship is assessed. The underlying nature of entrepreneurship is examined and the core dimensions of an entrepreneurial orientation are identified. Based on current classification schemes of HRM-related practices, an assessment is made of practices that facilitate rather than constrain entrepreneurial behaviour, and research hypotheses are generated. Results are reported of a cross-sectional survey of firms in which these hypotheses are tested. Conclusions and implications are drawn for managers, and suggestions are made for further research.     

国有企业员工退出行为的博弈分析

建立了国有企业员工退出行为的过程模型,提出了员工退出行为的两个过程即员工心理体验过程和员工与企业的互动过程,并对互动过程进行了博弈分析,指出了现实中员工与经理人博弈的低效率均衡,提出了解决这种不合理均衡的对策建议。     

Long-term industry performance following IPOs

While firms are more likely to go public when the corresponding industry prospects are favorable, they may also serve as formidable threats to pull market share from the industry. In addition, if IPOs are timed when industry valuations are unusually high, there may be an aftermarket correction in the industry. We find that the corresponding industry rival portfolios experience unfavorable price performance on average over the 36-month period following an IPO. The dispersion in long-term industry effects following the IPOs can be partially explained by competitive effects and the timing of the IPO. The adverse industry effects are more pronounced when the IPOs are small, and when the IPO is the first in the industry within the last 2 years. Furthermore, the adverse industry effects are more pronounced when the IPOs are in regulated industries, and when prevailing industry multiples are relatively high at the time of the IPO. Overall, these characteristics document the influence of competitive effects and timing signals on industry effects associated with IPOs.     

金融工具会计

金融工具会计的主要问题集中在确认和计量方面。金融资产的初始计量应为:将支付的对价作为取得金融资产的初始入账金额;金融资产的后续计量应为:企业发起但不是为交易而持有的贷款和应收款项按成本计量,持有至到期的投资按摊余成本计量,可供出售金融资产和交易性金融资产按资产负债表日的公允价值计量。确定金融资产公允价值的优先顺序为:公开活跃市场上该项资产的市价、参考市场上类似交易资产的价格、采用期权定价法或资本资产定价法。     

Employers' hiring practices,employment protection,and costly search: A vacancy-level analysis

An employer with a vacancy may respond to high search costs by lowering hiring requirements. While such an adjustment increases the employer's chances of filling the vacancy, it also more likely results in a match that terminates when the match is hit by match-specific productivity shocks. Drawing on a novel Slovenian vacancy dataset, we find that employers who are searching to fill temporary positions are more likely to hire underqualified workers when search costs are high. We find that search costs are taken into consideration when employers are searching to fill permanent positions in some specifications but not all. These findings suggest that for employers who are searching to fill a permanent position, the benefits of lowering hiring requirements when search costs are high are likely outweighed by: a) high firing costs if an under-qualified worker is hired on a permanent contract or b) the costs of undertaking a new search later if an under-qualified worker is hired on a temporary contract. These are novel findings about the employers' hiring practices in the presence of employment protection laws and costly search.     

Confidence intervals for batch properties based on both sampling and analytical variance

Summary If different random samples are taken from a heterogeneous batch and each sample is analysed once or in replicate, the average result is a point estimation of the true but unknown mean of the batch property concerned. In this paper, formulae are given for the numbers of degrees of freedom, which are necessary for interval estimations based on both the sampling and the analytical variance. It is essential to distinguish between situations in which estimates of the variances are available and in which they are not.     

Individual and Institutional Investors’ Response to Earnings Reported by Conservative and Non‐Conservative Firms: Evidence from Chinese Financial Markets

In this study, we document that there are significant differences in individual and institutional investors’ perception and interpretation of information based on accounting conservatism, as reflected by their trading behavior in the Chinese financial market. Our findings show that institutional investors, who are more sophisticated and have better skills, engage in higher purchases of equities of firms that use high accounting conservatism compared to the firms that use low/no accounting conservatism. Institutional investors’ equity purchases are even higher if these firms are associated with higher growth opportunities. On the other hand, individual investors are attracted more by the attention‐grabbing events and are motivated to purchase equities of firms that either do not use accounting conservatism or use low accounting conservatism, and their purchases are even higher when the firms report positive earnings surprises. Additionally, we find that abnormal returns are higher for the firms using high accounting conservatism and have experienced higher purchases by institutional investors.