《Instability and network effects in innovative markets》
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作者:
Paolo Sgrignoli, Elena Agliari, Raffaella Burioni, Augusto Schianchi
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最新提交年份:
2014
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英文摘要:
We consider a network of interacting agents and we model the process of choice on the adoption of a given innovative product by means of statistical-mechanics tools. The modelization allows us to focus on the effects of direct interactions among agents in establishing the success or failure of the product itself. Mimicking real systems, the whole population is divided into two sub-communities called, respectively, Innovators and Followers, where the former are assumed to display more influence power. We study in detail and via numerical simulations on a random graph two different scenarios: no-feedback interaction, where innovators are cohesive and not sensitively affected by the remaining population, and feedback interaction, where the influence of followers on innovators is non negligible. The outcomes are markedly different: in the former case, which corresponds to the creation of a niche in the market, Innovators are able to drive and polarize the whole market. In the latter case the behavior of the market cannot be definitely predicted and become unstable. In both cases we highlight the emergence of collective phenomena and we show how the final outcome, in terms of the number of buyers, is affected by the concentration of innovators and by the interaction strengths among agents.
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中文摘要:
我们考虑一个相互作用的代理网络,并通过统计力学工具对采用给定创新产品的选择过程进行建模。模型化使我们能够关注在确定产品本身的成功或失败时,代理之间直接交互的影响。模仿真实系统,整个人群被分成两个亚群体,分别称为创新者和追随者,其中前者被认为表现出更大的影响力。我们在随机图上通过数值模拟详细研究了两种不同的场景:无反馈互动,创新者具有凝聚力且不受剩余人口的敏感影响;反馈互动,追随者对创新者的影响不容忽视。结果明显不同:在前一种情况下,创新者能够推动整个市场并使其两极分化,这相当于在市场中创造一个利基市场。在后一种情况下,市场行为无法明确预测,变得不稳定。在这两种情况下,我们都强调了集体现象的出现,并展示了最终结果(就买家数量而言)如何受到创新者集中度和代理人之间互动强度的影响。
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分类信息:
一级分类:Physics 物理学
二级分类:Physics and Society 物理学与社会
分类描述:Structure, dynamics and collective behavior of societies and groups (human or otherwise). Quantitative analysis of social networks and other complex networks. Physics and engineering of infrastructure and systems of broad societal impact (e.g., energy grids, transportation networks).
社会和团体(人类或其他)的结构、动态和集体行为。社会网络和其他复杂网络的定量分析。具有广泛社会影响的基础设施和系统(如能源网、运输网络)的物理和工程。
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一级分类:Computer Science 计算机科学
二级分类:Social and Information Networks 社会和信息网络
分类描述:Covers the design, analysis, and modeling of social and information networks, including their applications for on-line information access, communication, and interaction, and their roles as datasets in the exploration of questions in these and other domains, including connections to the social and biological sciences. Analysis and modeling of such networks includes topics in ACM Subject classes F.2, G.2, G.3, H.2, and I.2; applications in computing include topics in H.3, H.4, and H.5; and applications at the interface of computing and other disciplines include topics in J.1--J.7. Papers on computer communication systems and network protocols (e.g. TCP/IP) are generally a closer fit to the Networking and Internet Architecture (cs.NI) category.
涵盖社会和信息网络的设计、分析和建模,包括它们在联机信息访问、通信和交互方面的应用,以及它们作为数据集在这些领域和其他领域的问题探索中的作用,包括与社会和生物科学的联系。这类网络的分析和建模包括ACM学科类F.2、G.2、G.3、H.2和I.2的主题;计算应用包括H.3、H.4和H.5中的主题;计算和其他学科接口的应用程序包括J.1-J.7中的主题。关于计算机通信系统和网络协议(例如TCP/IP)的论文通常更适合网络和因特网体系结构(CS.NI)类别。
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一级分类:Quantitative Finance 数量金融学
二级分类:General Finance 一般财务
分类描述:Development of general quantitative methodologies with applications in finance
通用定量方法的发展及其在金融中的应用
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