基于改进对偶动态规划的产销者点对点交易全分散式出清方法

分布式资源的增长使得电力用户逐步从消费者转变为产销者。主要针对产销者点对点(peer-to-peer,P2P)交易全分散式出清问题开展研究。首先,以产销者总成本最小为目标,综合考虑过网费与网络约束,建立产销者P2P交易模型。其次,基于多阶段优化理论将P2P交易模型转化为全分散式优化模型,并以节点累积偏移电压和线路累积使用容量为状态变量,清晰地刻画每一对交易对配电网运行的影响情况。接着,利用对偶动态规划(dual dynamic programming,DDP)进行求解。为了提高求解效率,采用帕累托最优割技术对DDP进行改进,以减少冗余Benders割的产生,在保证算法精度的同时提高其收敛速度。最后,通过算例分析验证了所提方法的有效性。

基于合作博弈的产销者社区分布式光伏与共享储能容量优化

含共享储能的分布式光伏产销者社区是提高储能和光伏利用率,降低产销者投资成本的有效途径。社区内部共享储能和分布式光伏的容量配置方案不仅要考虑投资的经济性,还需计及社区内部不同投资主体的利益交互带来的影响。针对上述挑战,提出了基于合作博弈的共享储能与分布式光伏容量协同规划方法。首先,在合作博弈框架下构建分布式光伏产销者、共享储能运营商多方参与者的策略合集与支付函数;其次,分析各参与者在不同合作模式下的均衡策略,利用改进Shapley值法辨识不同参与者对合作收益的贡献度;最后,基于某地实际的光伏数据进行了算例仿真,表明所提模型能够实现博弈各方利益在均衡意义下的最大化,同时保证资源综合及高效利用。

共享经济发展演化与协同治理研究——基于产销者视角

近年来,共享经济不断发展壮大,在快速发展的同时,也引起了安全、信用等问题。现有研究大都基于传统经济模式对共享经济发展问题进行治理,虽取得一定成效但效果并不理想。文章从产销者视角出发,分析共享经济发展演化及协同治理的必然性。分析发现政府应着力加强监督管理、规范共享市场,完善制度法律、优化发展环境;企业应积极推动各类创新,为消费者创造更多供给需求;产销者应发挥生产经营者和消费者角色作用,积极参与共享经济市场,主动监督市场和政府。

粉丝认同方式及其产销行为研究

粉丝是社群中的一个特殊群体,愿意在情感、时间和经济方面为迷恋对象超常投入。他们常通过积累粉丝文化资本、寻求接触机会、追求身份融合、赠送礼物的方式向偶像明星表示认同。在认同的基础上,粉丝群体成为特殊的"产销者",他们不仅是明星文本的重要生产者和传播者,还是明星出产产品积极、稳定的消费者。

移动互联网语境下社群经济的内涵阐释

文章从社群与电商经济的内涵角度,界定2015年以来借由移动互联网产生的社群经济。社群经济的组织方式为新网络社群,在保留传统网络社群"精神共同体"特征的同时,还体现了两点新特征,即虚拟性的消退和边界的转换;社群经济的商业模式为电子商务,体现为电商3.0的发展阶段;社群经济的参与主体为参与式文化影响下的产销者,其内在机理为信任代理模式和共享经济。基于高收益、低成本的特征,社群经济将会成为我国互联网经济中的重要角色。

关于食品安全问题的理性思考

不法生产者制造"问题"食品不外乎减少有益成分以降低成本、添加不益成分以增强特色、使用有害物质以提升品质指标等三种手段。而消费者认知不足和不良偏好是上当受骗的主要原因,一些产销者利欲熏心,不断翻新造假售假花样则增加了治理难度。为此,管理者抓食品安全问题任重道远,重点在于对生产者长期有效的监督,对消费者进行经常性的食品安全教育。

Analysis on the Transformation of Marketing Strategy and the Countermeasures under the Network Economic Times

In this paper, we theoretically analyze the transformation of marketing strategy and the countermeasures under the network economic times. Network marketing is based on the network technology, including the whole process of marketing activities as a new form of marketing. In this paper, we analyze the issue from the listed perspectives. （1） Ultra space-and-time. The traditional marketing has very strong boundedness to the region, and this boundedness displays, the specifi c transaction can only be closed in the specific region, if the enterprise wants to expand the market share, only then establishes the retailing organization. （2） Interactivity. Network as a media, with the one-on-one interaction, this feature allows companies to basic communicate with consumers, and strengthen consumer participation, to determine the product form, function and the price. （3） The symmetry of information. Consumers can fi nd all kinds of that related products on the Internet information, there are plenty of time to judge the various products and prices. Companies will also be released in a timely manner on the Internet the company’s latest product information. Under this basis, we propose the new idea on the network marketing development direction that will help to build up the more efficient marketing system.

Transparency in Meat Production： Consumer Perceptions at the Point of Sale

As a result of a large number of food scandals, societal interest in transparency in the food sector has grown considerably. Hence, the creation of transparency in the production process has been the focus of recent legislation. In addition to tracking and tracing, one finds in the public discussion an increasing number of demands for further information on such issues as food safety, animal and environmental protection and the sustainability of food production processes. However, it has not yet been sufficiently clarified which information about the production process--and thus which level of transparency--is actually desired or can actually be processed by consumers at the point of sale. In order to analyze this topic from the viewpoint of consumers, a large-scale empirical study has been conducted. This research uses an adaptive conjoint analysis to determine what transparency expectations consumers have with regards to information on packaged pork. Initial results show a very heterogeneous demand for information. Furthermore, consumers＇ demand for more information sometimes does not match their actual benefit profiles. The results provide insight into consumers＇ information needs and their willingness to pay for greater transparency; they also have interesting implications for meat processors＇ product development strategies.

The Policy Effectiveness of＂Go Organic＂： A Study on Implementation and Efficiency of Organic Vegetable Cultivation in Semarang Municipality

This paper discussed the cost and benefit level of the marketing mix of organic vegetable cultivation. In 2011, the research assessed the effectiveness of policy of＂Go Organic 2010＂ in Semarang municipality. The objectives of this work are to assess： （1] program implementations; （2） related stakeholders; C3] external and internal constrains; （4] the level of effectiveness; and （5） the efficiency on the use of production factors. Further, it aims to improve the competitiveness of the agricultural commodity through using efficient production factors, lessening the environmental damage as the use of pesticide, and promoting awareness of responsibilty among government, university, and society. Having employed interactive approach and SPSS 13.0 program, the result indicates that behavior of farming in the research area sounds to be less efficient. Further, agriculture extension agent performance in Semarang needs also to be better improved. Therefore, improvement on counselling activities is proposed to be a solution to make the performance of the extension optimum. Meanwhile, the number of extension agents is not sufficient. It is expected that the ideal number for extension--one village one extension--can be applied.

含风光储微网的大用户短期交易决策

随着可再生能源发电技术的日益成熟和售电侧市场放开,含分布式电源用户或微网等电能产销者参与的市场交易问题正得到越来越多的关注。以含风电、光伏、储能(简称风光储)、微网的大用户为研究对象,在日前电力市场的环境下,计及可再生能源出力的波动性,建立了由风力发电机组、光伏电池、储能系统组成的含风光储微网的大用户短期交易决策模型,并采用条件风险价值量化大用户的交易风险,为评估含风光储微网的大用户参与市场交易的风险提供了一种可行方法。最后,通过算例仿真验证了模型的正确性和合理性,说明蓄电池有助于降低大用户在短期交易中的风险。