餐饮业连锁经营要处理好五大问题

分析了餐饮业连锁经营需要处理的五大问题,对经营模式、经营策略、经营方法、物流配送和发展战略进行了深入地探讨.     

北京市房地产业发展的现状、问题与对策

本文在对北京市房地产业现状进行总体分析的基础上,针对其存在的主要问题提出了在新一轮宏观调控下的发展对策.     

国有企业“债转股”政策:功能缺陷与制度依赖——项基于国有企业“债转股”政策跟踪调查的研究

伴随着我国经济体制改革向纵深发展,国有企业负债比率过高的问题更加突出显示出来。为了解决这个问题,我国实施了“债转股”政策。本文讨论四个命题:(1)国有企业是负债比率过高还是收益率过低;(2)“债转股”政策究竟是使国有企业“财务解困”还是“体制解困”;(3)“债转股”政策究竟是转移金融风险还是化解金融风险;(4)资产管理公司为国有企业和国有商业银行解困,将来谁为资产管理公司解困。本文认为“债转股”政策设计存在功能缺陷与制度依赖。国有企业“债转股”政策的成功依赖于国有企业(商业银行)现代企业制度的建立与完善。     

发达国家科技政策导向及其启示

当今世界,科技政策已成为许多国家尤其是美、日、欧等发达国家全力打造科技强国的基本的公共政策。文章从国家战略引导产业发展、国家政策促进产业发展、全力追求知识与技术创新、注重培养和吸纳优秀人才等4个方面对此进行了探析。     

基于制造业ERP构建企业多层数据仓库

文章针对目前制造业ERP在决策支持方面的不足,提出了基于制造业ERP构建由标准数据仓库、多维数据库和数据挖掘库等组成的企业多层数据仓库体系框架,阐述了该体系框架的构建方法和过程,并分析了一个应用实例。     

收益管理--一种提高海运企业经营绩效的新方法

本文首先介绍了收益管理的基本概念及效果，然后具体分析了适用收益管理的行业特征，进而通过对海运业行业特征的比较．提出了在海运业推行收益管理以提高企业经营绩效的建议。     

Robustness issues in multilevel regression analysis

A multilevel problem concerns a population with a hierarchical structure. A sample from such a population can be described as a multistage sample. First, a sample of higher level units is drawn (e.g. schools or organizations), and next a sample of the sub‐units from the available units (e.g. pupils in schools or employees in organizations). In such samples, the individual observations are in general not completely independent. Multilevel analysis software accounts for this dependence and in recent years these programs have been widely accepted. Two problems that occur in the practice of multilevel modeling will be discussed. The first problem is the choice of the sample sizes at the different levels. What are sufficient sample sizes for accurate estimation? The second problem is the normality assumption of the level‐2 error distribution. When one wants to conduct tests of significance, the errors need to be normally distributed. What happens when this is not the case? In this paper, simulation studies are used to answer both questions. With respect to the first question, the results show that a small sample size at level two (meaning a sample of 50 or less) leads to biased estimates of the second‐level standard errors. The answer to the second question is that only the standard errors for the random effects at the second level are highly inaccurate if the distributional assumptions concerning the level‐2 errors are not fulfilled. Robust standard errors turn out to be more reliable than the asymptotic standard errors based on maximum likelihood.     

论转轨时期我国商贸产业规模结构优化

商贸产业规模结构优化的依据是市场竞争优势，政府的作用是催化竞争。     

Productive Efficiency of the Swine Industry in Hawaii: Stochastic Frontier vs. Data Envelopment Analysis

Improving productive efficiency is an increasingly important determinant of the future of the swine industry in Hawaii. This paper examines the productive efficiency of a sample of swine producers in Hawaii by estimating a stochastic frontier production function and the constant returns to scale (CRS) and variable returns to scale (VRS) output-oriented DEA models. The technical efficiency estimates obtained from the two frontier techniques are compared. The scale properties are also examined under the two approaches. The industry's potential for increasing production through improved efficiency is also discussed.     

浅谈现代物流产业的构成及存在的问题

目前,由五大行业组成的现代物流产业构架已基本形成,这对现代物流业的发展起着举足轻重的作用.文中就如何合理确立现代物流产业结构,合理配置资源方面谈及了自己的一些看法.