Consistent estimation in the bilinear multivariate errors-in-variables model

A bilinear multivariate errors-in-variables model is considered. It corresponds to an overdetermined set of linear equations AXB=C, A∈ℝ^m×n, B∈ℝ^p×q, in which the data A, B, C are perturbed by errors. The total least squares estimator is inconsistent in this case.  An adjusted least squares estimator is constructed, which converges to the true value X, as m →∞, q →∞. A small sample modification of the estimator is presented, which is more stable for small m and q and is asymptotically equivalent to the adjusted least squares estimator. The theoretical results are confirmed by a simulation study. Acknowledgements. We thank two anonymous reviewers for their suggestions and corrections.? A. Kukush is supported by a postdoctoral research fellowship of the Belgian office for Scientific, Technical and Cultural Affairs, promoting Scientific and Technical Collaboration with Central and Eastern Europe.? S. Van Huffel is a full professor with the Katholieke Universiteit Leuven.? I. Markovsky is a research assistant with the Katholieke Universiteit Leuven.? This paper presents research results of the Belgian Programme on Interuniversity Poles of Attraction (IUAP V-22), initiated by the Belgian State, Prime Minister's Office – Federal Office for Scientific, Technical and Cultural Affairs of the Concerted Research Action (GOA) projects of the Flemish Government MEFISTO-666 (Mathematical Engineering for Information and Communication Systems Technology), of the IDO/99/03 project (K.U. Leuven) “Predictive computer models for medical classification problems using patient data and expert knowledge”, of the FWO projects G.0078.01, G.0200.00, and G0.0270.02.? The scientific responsibility is assumed by its authors.     

城市旅游标志物的确定及其结构化

针对旅游者对将要访问的城市比较陌生、选择旅游对象物时出现茫然的现象，为了更好地服务于旅游者，基于旅游行政管理的立场，提出了城市旅游标志物概念，认为其核心成员的确定需要基于遗产性、规模性、便捷性和公益性4个原则，并给出了核心成员、支持成员和外围成员的认知结构。     

高职高专教育教学质量评价国际比较研究

该系教育部《新世纪高职高专教育教学质量监控与教学评价体系的研究与实践》项目“国际比较研究”子课题的研究报告。报告从近年来评价模式的多样化、评价主体的多元化、评价客体的一体化以及评价价值观的双重取向变化四个方面进行了比较研究。     

人的能动性与受动性的辩证统一初探

人是能动性与受动性的辩证统一体:能动性之中有受动性,受动性之中有能动性。两者的辩证统一是通过人的实践来实现。任何夸大人的能动性而否定人的受动性,或者夸大人的受动性而否定人的能动性都是不科学的。     

Economic Valuation of Health for Environmental Policy: Comparing Alternative Approaches. Introduction and Overview

Protecting human health is a primary goal of environmental policy and economic evaluation of health can help policy-makers judge the relative worth of alternative actions. Economists use two distinct approaches in normatively evaluating health. Whereas environmental economists use benefit-cost analysis supported by monetary valuation in terms of willingness-to-pay, health economists evaluate interventions based on cost-effectiveness or cost-utility analysis (CEA), using quality-adjusted life-years (QALY) or similar indexes. This paper provides background on the controversy about the relative merits of these approaches and introduces the remaining papers in the special issue. These papers (with one exception) were presented at a conference sponsored by the Department of Economics at the University of Central Florida with support from the US Environmental Protection Agency. Although CEA might not lead to substantially different implications for environmental policy than benefit-cost analysis, and QALY may provide a benefit transfer tool to fill gaps in the morbidity valuation literature, the papers in this issue raise serious concerns about the suitability of QALY-based CEA for environmental regulatory analysis. QALY does not in general appropriately represent individual preferences for health and CEA is neither independent of income distribution nor adequate to assess efficiency.     

Natural resource accounting for Indian states — Illustrating the case of forest resources

Our main objective is to set out and apply a SEEA-based methodology to reflect the true value of forest resources in India's national and state accounts. We establish that a “top-down” approach using available national databases is both feasible and desirable from a policy perspective. In this paper, we address four components of value creation in forests: timber production, carbon storage, fuelwood usage, and the harvesting of non-timber forest products. The results of our analysis suggest that prevailing measures of national income in India underestimate the contribution of forests to income. The income accounts of the Northeastern states in particular are significantly understated by these traditional (GDP/GSDP) measures. We are also able to identify some states which performed poorly in the context of our sustainability framework, reflecting natural capital losses due to degradation and deforestation. Our results highlight the need to integrate natural resource accounting into the national accounting framework in order to generate appropriate signals for sustainable forest management and for the conservation of forest resources which are widely used by the poor in India, as well as being significant stores of national wealth.     

论区域营销系统

区域营销实质上是一个战略市场管理过程,也是一个区域财富的增长过程。文章从区域营销系统的主客体和营销的目的出发,认为区域营销系统主要由四部分构成:主体子系统、目标市场及其决策过程、产品子系统、战略管理子系统。并认为营销实质上是一个社会管理过程,是一个产品和价值交换过程,而区域营销系统网络是实现区域产品和价值交换的平台。同时还认为区域形象是区域营销的产品包装。     

论民事诉讼回避对象的立法缺陷及完善

民事诉讼程序中回避制度的适用对象因受到当事人知情权和被申请主体资格等限制，在实践中无法得到有效的实现。这与我国回避制度的立法思想、立法技术和回避处理程序的行政化有密切关系。我国立法应当与司法改革的成果相适应，适当扩大回避对象的范围，并从程序性质的重新界定、告知制度的细化、制度之间的衔接等方面来保障当事人申请回避权的实现。     

关于会计理论体系逻辑起点问题的研究

本文在回顾我国关于会计理论体系逻辑起点研究成果的基础上,分析了以会计假设、会计本质、会计环境、会计目标作为逻辑起点的缺陷及新的研究趋向--双起点论的不足,认为应将会计对象作为会计理论体系的逻辑起点。对于同样以会计对象作为逻辑起点的观点,由于各学者对会计对象内涵定义的不同,其构建的理论体系是存在偏差的。笔者认为以价值增值运动为会计对象是合理的选择,并以此作为逻辑起点构建了会计理论体系的粗略框架。     

关于全面实行政府采购审计的研究

实行政府采购审计制度存在认识不足,审计不全面,未形成独立审计项目,业务不熟悉等问题,需要完善有关法律、法规和制度,围绕其特点、目标、方式等确定审计对象,以政府采购资金的运动过程为审计主线进行全面审计,规范审计程序.提高审计质量,防范审计风险。