消费的信息成本和信息收益   总被引：4，自引：0，他引：4  

李用俊 《淮南师范学院学报》2003,5(3):80-83

由于消费者和供应商之间存在着信息不对称,消费者的消费行为就存在着信息成本问题,文章力图从商品的同质和异质两个方面去分析消费交易活动的信息成本和信息收益,并进一步提出供应商降低信息不对称程度的措施。  相似文献   

佛山市大气环境影响评价研究     

朱冠友  余冠明 《中山大学学报论丛》1990,(1)

从大气污染源、污染气象条件、大气污染现状入手,运用大气扩散模式对佛山市环境质量现状进行了模拟,并结合2000年城市总体发展规划,预测估算了大气环境的质量和容量,为该市大气污染的治理和环境管理提供了科学依据。  相似文献   

从代理成本看国有企业产权改革的路径选择     

《江苏经贸职业技术学院学报》2006,(4)

国有企业的代理成本与其他所有制企业的代理成本相比高了许多。从委托-代理理论及现有的国有企业代理成本的研究成果来看,国有企业委托-代理关系具有特殊性,其代理成本过高的根源在于产权不清晰。  相似文献   

二恶英的污染来源及预防   总被引：1，自引：0，他引：1  

孟哲 《邢台学院学报》2004,19(2):74-76

二恶英是人们所知环境中毒性最大的有机化合物之一，它具有致癌性、致畸、内分泌毒性等。通过介绍二恶英的化学结构及污染来源，阐述二恶英的致毒机理及对人体健康的危害，展望了二恶英类物质分析研究和预防的新动向。  相似文献   

关于环境影响评价问题的思考与建议     

赵慧  秦明周  王猛 《周口师范学院学报》2007,24(1):97-99

文章概述了国际环境影响评价法律制度的主要发展趋势,指出了改革我国环境影响评价的方向,对进一步健全我国环境影响评价法律制度提出了几点建议。  相似文献   

Evaluation of the non‐formal forest education sector in the state of North Rhine‐Westphalia,Germany: organisations,programmes and framework conditions     

Anne Grimm  Thorsten Mrosek  Anna Martinsohn  Andreas Schulte 《Environmental Education Research》2011,17(1):19-33

Although a large number of different organisations offer various forest education programmes within Germany, specific information (i.e., sectoral and programme content and provision at a state level) is lacking. This study used a survey of all 61 forest education organisations (43 respondents) in the state of North Rhine‐Westphalia, Germany, to evaluate its forest education sector, with a specific focus on the organisations, demand for its services, forest educational programmes and framework conditions. Input from expert interviews was also used to develop recommendations. The study indicates that, especially with children as the main target group, many non‐formal programmes are offered to support the formal environmental education sector and to promote leisure activities in the forest. Yet, despite a high demand for forest education, low personnel resources restrict the number of visits and activities, principally owing to limited financial resource. We also discuss the provision of innovative new educational programmes and supplementary services, combined with increased quality management, that could be beneficial to the future development of the sector in NRW.  相似文献   

＂Discover Diversities＂： A Trans-Inter-Disciplinary （SEMEP） Project for Different School Levels and Teachers＇ Training     

Miranda Pilo  Brigitte Gavio  Elda Scaldarella  Caterina Di Carlo  Daniela Martorano 《美中教育评论》2011,(1):73-82

  相似文献   

The Importance of Social-Content Advertisement Campaigns in Establishing Environmental Consciousness     

Yusuf KES 《美中教育评论》2011,(3):427-437

  相似文献   

Area-time associated test cost model for SoC and lower bound of test time     

张金艺  翁寒一  黄徐辉  蔡万林 《上海大学学报(英文版)》2011,15(1):43-48

A novel test access mechanism (TAM) architecture with multi test-channel (TC) based on IEEE Standard 1500 is proposed instead of the traditional sub-TAM structure. The cost model of an area-time associated test and the corresponding lower bound of system-on-chip (SoC) test time are established based on this TAM architecture. The model provides a more reliable method to control the SoC scheduling and reduces the complexity in related algorithm research. The result based on the area time associated test cost model has been validated using the ITC’02 test benchmark.  相似文献   

从社会成本与私人成本视角审视非公有制经济     

于喜繁  丛娟 《韩山师范学院学报》2011,32(4):42-47

非公有制经济的基本特征是私人成本较低,而社会成本较高。其私人成本较低,既是非公有制经济的生机活力的典型反映,也是它们基于自身的利益驱动将部分私人成本转嫁为社会成本的结果。社会成本较高,这是非公有制经济难以克服的根本缺陷。客观认识非公有制经济的成本高低和竞争优劣问题,应当从私人成本与社会成本相结合的视角,来审视非公有制经...  相似文献