Sample Design and Allocation for Random Digit Dialling

Sample design and sample allocation methods are developed for random digit dialling in household telephone surveys. The proposed method is based on a two-way stratification of telephone numbers. A weighted probability proportional to size sample allocation technique is used, with auxiliary variables about the telephone coverage rates, within local telephone exchanges of each substrata. This makes the sampling design nearly “self-weighting” in residential numbers when the prior information is well assigned. A computer program generates random numbers for the local areas within the existing phone capacities. A simulation study has shown greater sample allocation gain by the weighted probabilities proportional to size measures over other sample allocation methods. The amount of dialling required to obtain the sample is less than for proportional allocation. A decrease is also observed on the gain in sample allocation for some methods through the increasing sample sizes.     

Progressive stress accelerated life tests under finite mixture models

In this paper, progressive stress accelerated life tests are considered when the lifetime of a product under use condition follows a finite mixture of distributions. The experiment is performed when each of the components in the mixture follows a general class of distributions which includes, among others, the Weibull, compound Weibull, power function, Gompertz and compound Gompertz distributions. It is assumed that the scale parameter of each component satisfies the inverse power low, the progressive stress is directly proportional to time and the cumulative exposure model for the effect of changing stress holds. Based on type-I censoring, the maximum likelihood estimates (MLEs) of the parameters under consideration are obtained. A special attention is paid to a mixture of two Rayleigh components. Simulation results are carried out to study the precision of the MLEs and to obtain confidence intervals for the parameters involved.     

The generalized Stackelberg equilibrium of the all-pay auction with complete information

We characterize the equilibrium of the all-pay auction with general convex cost of effort and sequential effort choices. We consider a set of n players who are arbitrarily partitioned into a group of players who choose their efforts ‘early’ and a group of players who choose ‘late’. Only the player with the lowest cost of effort has a positive payoff in any equilibrium. This payoff depends on his own timing vis-a-vis the timing of others. We also show that the choice of timing can be endogenized, in which case the strongest player typically chooses ‘late’, whereas all other players are indifferent with respect to their choice of timing. In the most prominent equilibrium the player with the lowest cost of effort wins the auction at zero aggregate cost. We thank Dan Kovenock and Luis C. Corchón for discussion and helpful comments. The usual caveat applies. Wolfgang Leininger likes to express his gratitude to Wissenschaftszentrum Berlin (WZB) for its generous hospitality and financial support.     

基于合作关系的供应链信息共享模式研究

首先研究了供应链上下游合作伙伴间信息共享博弈情况，并分析了影响信息共享的障碍因素。然后，从合作伙伴合作关系的视角探讨了供成链中合作伙伴的类型及合作目的，最后以此为基础构建出供应链合作伙伴的信息共事模式及技术支撑体系。     

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.     

广东省现代物流的供需匹配研究

广东省现代物流正处于快速增长的阶段，如何协调物流供给与需求的矛盾，是现代物流发展过程中不可避免的问题。本文从物流的需求和供给的状况着手，分析了广东省现代物流存在供需不平衡问题的原因与表象，对匹配广东省现代物流的需求与供给提出了几条建议。     

林业企业信息化面临的问题及对策

面对信息化时代的到来,企业信息化成为企业生存和发展的关键,文章从目前我国林业企业的现状出发,分析了林业企业信息化中存在的主要问题,并提出了相应的对策。     

传统运输企业向现代物流企业转变的分析与对策

分析物流的特点及其在国民经济及企业发展中的地位，分析传统运输企业向现代物流企业转化的客观市场条件，结合我国物流发展现状，讨论我国传统运输企业向现代物流企业转变的必要性与可行性，进而分析我国发展物流业存在的问题和机遇，并提出传统运输企业向现代物流企业发展的对策和建议。     

The effect of interfirm dependence structures on governance mechanisms

Despite recent developments regarding the study of interdependence structures, previous research has rarely investigated the simultaneous effect of both interdependence magnitude and interdependence asymmetry on governance mechanisms among exchange parties. A survey of manufacturing companies has been used to test a theory about the interactive effect of buyer dependence and supplier dependence on inter-firm governance. The analysis of the survey supported the proposition that both buyers and suppliers that are highly dependent on each other (high interdependence magnitude and low interdependence asymmetry) may choose to rely on monitoring and the norm of information sharing. However, when a buyer's dependence is low regardless of the supplier's dependence level, the buyer does not rely on the norm of information sharing (buyer's relative interdependence advantage, buyer's relative interdependence disadvantage, and low interdependence magnitude). On the other hand, when the supplier's dependence on the buyer is low, the buyer relies on monitoring regardless of its dependence level (buyer's relative interdependence disadvantage and low interdependence magnitude). However, this study did not empirically measure performance. Further research should be done on the effect of congruence between the governance mechanism and its antecedents on buying performance.     

论瑞典社会民主党构建和谐社会的探索

瑞典式社会主义和谐社会经历了诞生、发展到成熟的过程。1932年秋社民党通过竞选上台执政,开始功能社会主义福利国家的尝试；1944-1975年是和谐国家建设的全面展开和建成；1982-1990年“保卫福利、重振经济”和谐政策的调整；1990-2000年建设自由与平等基础上相互关联的社会共同体；以2001年1 1月社民党第34次全国代表大会为起点,重建民主的人道的更加和谐的社会主义福利国家。