设施直线型自动布置的算法之三

根据设施之间关系的密切程度,给出了设施直线型自动布置的一种算法,数值实验表明这种算法是十分有效的。     

探析中小企业如何选择ERP软件

首先阐述了中小企业发展的现状,然后分析了中小企业在选择ERP软件时存在的一些误区,最后对中小企业如何选择ERP软件提出了几点建议。     

地铁运营筹备阶段仓储管理工作的问题及思考

文中主要讨论西安地铁运营筹备阶段仓储管理存在的问题,并从五个方面分别进行了阐述。为了有效解决问题,共从十四个方面提出整改措施。     

辛亥革命前后关于国家政体的选择及其启示

辛亥革命值得纪念和追忆,这一段历史注定要在中国政治制度建设和政治现代化建设史上留下许多有价值的经验和教训,认真、客观总结和评价这一在中国民主进程中有着特别重要意义的历史阶段,对于我们建设有中国特色的民主政治是大有帮助的。辛亥革命后对国家政体的选择以《中华民国临时约法》为标志,共和代议政体正式确立。尽管共和代议政体运行并不理想,但建立了一个各种政治势力角力的平台,这是一个历史性的进步。这一段历史给我们以深刻启示:一是政治统治要具备政治合法性形式要件;二是政治改革进程中要创造和培育有利于推行宪政的社会环境,民众是社会进步的积极力量;三是宪政文化宣传和普及是一个长期的历史过程。     

The Effect of Farmland Preservation Programs on Farmland Prices

Government agencies in urbanizing areas are increasingly utilizing purchase and transfer of development rights programs to preserve farmland and protect local farm economies. This paper tests the effect of development restrictions imposed by permanent easement sales on farmland sales prices, using Maryland data. We correct for selectivity bias due to the voluntary nature of these programs in estimating hedonic sales equations. Although preserved parcels' actual land values are lower, the effect of the restrictions is not statistically significant. These findings may encourage additional participation in preservation programs or justify reductions in the easement prices paid by agencies.     

白石牙水库大坝料场选择与开采规划

文章阐述了白石牙水库大坝料场的分析、选择和开采等情况。能不能用、够不够用、好用不好用、怎么用是料场选择与开采主要考虑的问题。通过介绍白石牙水库大坝料场选择的案例,为其他水利工程项目实施提供借鉴。     

越南多洋水电站工程引水系统布置与设计

文章介绍越南多洋水电站引水系统布置与设计要点,指出其根据地形特点,通过隧洞跨流域引水发电,同时修建日调节水库,具备更高技术含量,将带来巨大经济效益。     

Inference for treatment effects of job training on wages: using bounds to compute Fisher’s exact p-value

In the context of a training program’s randomized evaluation, where estimating wage effects is of interest, we propose employing bounds that control for sample selection as a model-based statistic to conduct randomization-based inference à la Fisher. Inference is based on a sharp null hypothesis of no treatment effect for anyone. In contrast to conventional inference, Fisher p-values are nonparametric and do not employ large sample approximations.     

小费、市场和价格--兼与刘宝宏先生商榷

本文运用新制度经济学、微观经济学以及管理学等基本理论,对实际生活中的小费现象进行阐释,得出基本结论是,小费产生于服务人员劳动的不确定性,其多样化的合约安排则受到不同国家和地区的文化背景以及不同行业的服务劳动所占比例的影响,目的在于克服消费者和服务人员的机会主义行为。针对我国目前的导游小费制,文章给出的建议是向“纯玩团”过渡。     

Location patterns of urban restaurants

Locational patterns of five categories of restaurants in eight Canadian cities in Ontario are examined to identify spatial regularities. Spatial regularities sought include tendencies to agglomerate or deglomerate with respect to restaurants of the same category as well as of different categories; spatial correlations with other land uses; apparent effects of varying traffic levels (AADTs) on restaurant location; and variations in restaurant patterns in cities of different population sizes. Specific hypotheses relating to these expected spatial regularities were formulated, the majority of which were confirmed. The paper concludes with some observations on the types of locations that appear to support successful restaurants in urban areas.