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制造企业绿色产品创新与扩散过程中的博弈分析 被引量:23
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作者 曹柬 吴晓波 +1 位作者 周根贵 胡强 《系统工程学报》 CSCD 北大核心 2012年第5期617-625,共9页
针对收益不确定性而导致的绿色产品创新动力不足问题,结合现实国情,将绿色产品的发展分为创新期、推广期和普及期三个阶段,采用博弈论和最优化理论探讨了绿色产品创新和扩散过程中制造企业间的博弈行为,得到了创新企业和竞争企业在不同... 针对收益不确定性而导致的绿色产品创新动力不足问题,结合现实国情,将绿色产品的发展分为创新期、推广期和普及期三个阶段,采用博弈论和最优化理论探讨了绿色产品创新和扩散过程中制造企业间的博弈行为,得到了创新企业和竞争企业在不同阶段的决策结果.基于对市场逆需求系数等参数的分析,提出了推动绿色产品创新及其扩散的前提条件和相关措施.研究表明:在一定的企业内外部条件下,绿色产品创新者具有先动优势,同行企业间的博弈竞争是推动绿色产品发展的重要动力和有效渠道,并推动消费者福利不断增加. 展开更多
关键词 制造企业 绿色产品 博弈分析 技术扩散:可持续发展
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中国“非洲猪瘟”流行现状及原因浅析 被引量:3
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作者 阳晴 刘文丽 陈洁 《中国集体经济》 2019年第25期163-165,共3页
非洲猪瘟(African swine fever,ASF)是由非洲猪瘟病毒(ASFV)引起以家猪、野猪为唯一宿主,人畜不共患的一种高传染率和高死亡率的动物传染疾病。自2018年8月2日我国在辽宁沈阳发生境内第一起ASF疫情以来,短短4个月内中国21大省份相继发... 非洲猪瘟(African swine fever,ASF)是由非洲猪瘟病毒(ASFV)引起以家猪、野猪为唯一宿主,人畜不共患的一种高传染率和高死亡率的动物传染疾病。自2018年8月2日我国在辽宁沈阳发生境内第一起ASF疫情以来,短短4个月内中国21大省份相继发生82起非洲猪瘟疫情,疫情尚未得到有效控制,进一步扩散可能性极大。为此,文章总结该病在中国的流行现状,在此基础上,试图分析其在中国持续扩散的原因。 展开更多
关键词 非洲猪瘟 流行现状 持续扩散的原因
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The Gap Between Early Adopters and Early Majority in the Diffusion of Environmentally Friendly Farming
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作者 Misa Aoki 《Sociology Study》 2014年第12期1060-1070,共11页
As an increasing number of people have become interested in healthy and environmentally friendly farm products, the diffusion process of sustainable farming has been widely discussed. However, few studies have empiric... As an increasing number of people have become interested in healthy and environmentally friendly farm products, the diffusion process of sustainable farming has been widely discussed. However, few studies have empirically investigated the differences between early adopters and early majority in diffusion of environmentally friendly farming. The purpose of this study is to examine the existence of the gap between early adopters and the early majority in the diffusion of environmentally friendly certified farm production by focusing on the case in which a frequent buyers program (FBP) was introduced for locally certified crops in the farmers markets of Japan. Though there were no differences in the characteristics of the two groups, early adopters initiated such production through governmental information provision and expected more profit than the adopters that followed. It was also found that non-economic reasons and information on stable markets for the certified products were crucial for both adopter groups. 展开更多
关键词 Low-input farm products diffusion process frequent buyers program (FBP} farmers market
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Using Geospatial Information Systems in Analyzing Urbanization Impacts on Stream Habitats in Southern Mississippi Coastal Ecosystem
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作者 E. Merem S. Yerramilli +6 位作者 C. Richardson J. Wesley T. Walker D. Foster J. Williams C. Romamo E Nwagboso 《Journal of Environmental Science and Engineering》 2011年第12期1624-1641,共18页
The proliferation of urban development with concentration in population and human-environment interaction has intensified around urban environments. This has resulted in the degradation of urban environments, overuse ... The proliferation of urban development with concentration in population and human-environment interaction has intensified around urban environments. This has resulted in the degradation of urban environments, overuse of natural resources and widespread pollution of ecosystems, The patterns of design initiatives continue to follow unsustainable path with impacts on stream ecosystems. Accordingly, the paper adopts geospatial information systems and sustainability principles for the identification and sequential mapping of stressors impeding natural systems in Southern Mississippi. The results not only reveal that the study area experienced some significant changes in its watershed environments, but the stream habitat ecosystem remains under stress. The recommendations for mitigating the problems range from policy considerations to the adoption of ecosystem approach. 展开更多
关键词 Geospatial information systems URBANIZATION ecological design ecosystem approach environmental degradation.
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网络嵌入视角下B站科普视频扩散的影响因素研究 被引量:6
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作者 李根强 于博祥 +1 位作者 邵鹏 张祺瑞 《科普研究》 北大核心 2022年第3期16-25,105,106,共12页
在突发公共卫生事件中,科普视频的传播扩散有助于提升公众理性认知,减少社会恐慌情绪,目前鲜有文献对知识导向的科普视频扩散开展研究。基于信息接受理论与网络嵌入理论,采用数据定向采集方法,以Bilibili网站上2020年1月20日至3月1日上... 在突发公共卫生事件中,科普视频的传播扩散有助于提升公众理性认知,减少社会恐慌情绪,目前鲜有文献对知识导向的科普视频扩散开展研究。基于信息接受理论与网络嵌入理论,采用数据定向采集方法,以Bilibili网站上2020年1月20日至3月1日上线的新冠肺炎科普视频为研究对象,从创建者网络入度、视频播放量和视频分享量等方面入手,探究科普视频持续扩散的影响因素。研究发现:网络入度、网络贡献、视频播放量和视频分享量均对创建者网络结构嵌入和网络关系嵌入有正向影响;视频创建天数、视频时长、网络入度、网络贡献均对科普视频扩散效果有正向影响;视频播放量、分享量、创建者网络入度均对科普视频持续播放有正向影响,视频播放量和网络入度对科普视频持续分享有正向影响。上述发现对指导视频创建者如何提高自身作品影响力以及网络平台管理都具有一定的实践指导意义。 展开更多
关键词 科普视频 持续扩散 网络嵌入 信息接受
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