An evaluation of product commonality and group technology production methods in a pre-defined multiple-machine scenario

Group technology has been used successfully for a number of years as a setup reduction tool. It is especially valuable in low-volume high-mix manufacturing environments where products and machines may be partitioned into product families and machine cells. The partitioning of machines or processes into cells may be limited by practical constraints, and the partitioning of products is complicated as the number of products and processes increases. In this paper, the authors examine the behaviour of various grouping strategies lauded as being appropriate in situations where machine partitioning and product routeing are determined by technological constraints. Of specific experimental concern in this paper is the effect of the mean and variance of component part commonality between products on system performance under various grouping strategies in a multiple-machine environment.     

制度三属性与旅游企业绩效关系研究

制度具有结构性、兼容性、变革性三个基本属性。制度结构与旅游企业绩效的联系可以从制度结构的主要内容中表现出来;实现制度上的兼容能够促进旅游企业绩效的提高;和改革起点相比较,改革速度对企业绩效的影响更为明显。     

从职业病防治看我国集体合同制度的不足与完善

职业病防治法的规定已经较落后,应当对其进行修改,扩大职业病的范围,同时为集体合同约定职业病条款预留空间。改革职业病的管理体制,积极完善工会组织,充分利用行业集体合同、区域集体合同和专项集体合同等现有机制,通过集体协商,引导劳动者和用人单位通过集体合同解决职业病防治问题,无论对于合同双方主体还是对于整个社会都是有益的。     

Determinants and Mapping of Collective Perceptions of Technological Risk: The Case of the Second Nuclear Power Plant in Taiwan

Nuclear power is a highly controversial and salient example of environmental risk. The siting or operating of a nuclear power plant often faces widespread public opposition. Although studies of public perceptions of nuclear power date back to 1970s, little research attempts to explain the spatial heterogeneity of risk attitude toward nuclear power among individuals or communities. This article intends to improve the knowledge about the major factors contributing to nuclear power plant risk perceptions by mapping the geographical patterns of local risk perception and examining the determinants in forming the nature and distribution of the perceived risk among potentially affected population. The analysis was conducted by a case study of the Second Nuclear Power Plant (SNPP) in Taiwan by using a novel methodology that incorporates a comprehensive risk perception (CRP) model into an ethnographic approach called risk perception mapping (RPM). First, we examined the determinants of local nuclear power risk perceptions through the CRP model and multivariate regression analysis. Second, the results were integrated with the RPM approach to map and explain the spatial pattern of risk perceptions. The findings demonstrate that the respondents regard the nuclear power plant as an extremely high‐risk facility, causing them to oppose the SNPP and reject the compensation payment to accept its continuing operation. Results also indicate that perceptions of nuclear power risk were mainly influenced by social trust, psychological and socioeconomic attributes, proximity, and the perceived effects of the SNPP on the quality of everyday life.     

企业财务状况与投资者关系管理--来自 IR 百强上市公司的经验证据

依据“2007年度中国最佳投资者关系管理百强”榜的评选结果,研究了企业财务状况对上市公司投资者关系管理的影响.结果表明,投资者关系管理与企业盈利能力负相关,与股东获利能力、发展能力以及企业现金流量能力正相关.研究还发现,公司规模和流通股比例有利于提升投资者关系管理水平.     

日本的公司治理对企业竞争优势的影响及其改革动因

20世纪90年代以前,日本的公司治理强化了它的企业竞争优势,一度让美国深感不安。而90年代后,日本的公司治理却又演化为经济发展的羁绊,个中原因耐人寻味。本文首先探讨了日本公司治理与企业竞争优势之间的内在逻辑,在此基础上分析了90年代后日本公司治理改革的根本动因。文章的分析是在已有研究成果的基础上力图提供一些更有说服力的见解。     

现代企业竞争及竞争效能描述新探

现代企业竞争已不再是传统竞争观念之下的企业之间为争夺最终消费者而展开的市场竞争了。现代企业要想在竞争中建立优势,就必须全面关注一切可能影响企业竞争力的相关组织和个人的作用。本文采用定性分析和定量分析相结合的方法,对现代企业竞争及其效能描述提出了一种全新的观点。     

国有企业改革与发展的轨迹

我国国有企业改革走的是渐进式、由易到难、由浅层次到深层次的变革道路。20年来,已经走过了从扩权让利、承包经营到现代企业制度的建立,从改革国有企业到国有经济战略性改组,从生产经营到资本经营,从改革到改革与发展相结合的艰难路程。目前,国有企业改革已到了攻坚阶段。展望未来,国有企业需要从宏观和微观层次上同时深化改革,沿着商品生产者——商品经营者——资本经营者的轨迹发展,实现市场化和资本化,建立起现代企业制度,培养出忠于国有资本的企业家,使国有资本成为资本的最高形态。     

关于水价成本公开的思考

解读企业实施水价成本公开的理论政策依据,剖析水价成本公开工作的现实意义和成本公开中需关注的问题,针对供水企业在开展成本公开工作中面临的任务和应采取的举措,提出相应的对策思路。     

SOCIAL MOVEMENT NETWORKS VIRTUAL AND REAL

This paper discusses the impact of 'computer mediated communication' (or CMC) on political activism and social movements. CMC may be expected to affect collective action by improving the effectiveness of communication and facilitating collective identity and solidarity. However, the heterogeneity of social movements undermines generic arguments and their relationship to CMC. Accordingly, the potential consequences of CMC on three different types of political organizations are discussed: organizations mobilizing mainly participatory resources, organizations focusing on professional resources, and transnational networks. The potential to build 'virtual [social movement] communities' seems highest among sympathizers of movement organizations who act professionally on behalf of causes with vast resonance among the public opinion and low radical potential. All in all, the most distinctive contribution of CMC to social movements still seems to be instrumental rather than symbolic. Existing bonds and solidarities are likely to generate more effective mobilization attempts than was the case before the diffusion of CMC; it is more disputable though as to whether CMC may create brand new social ties where there were none.