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題名 Volatility clustering and herding agents: does it matter what they observe?
作者 Yamamoto, Ryuichi
山本竜市
貢獻者 國貿系
日期 2011-05
上傳時間 13-Jan-2015 17:43:00 (UTC+8)
摘要 Recent agent-based models have demonstrated that agents` herding behavior causes volatility clustering in stock markets. We examine economies where agents herd on others, yet they have limited sets of information on other agents to imitate. In particular, we conduct experiments on economies with agents with different levels of information sharing where agents can imitate: 1. the strategies of others but with an error, 2. the strategies of only a fraction of agents, or 3. the strategies of others, but update their parameters only by a proportion. In each experiment we change the likelihood that agents make errors to copy the strategy of others, the fraction of agents to herd, or the proportion of the parameter that agents update, in order to examine the effect of the different degrees of information sharing on volatility clustering. We show that volatility clustering tends to disappear when agents have limited information on the strategies of others, and agents need to imitate the strategy details of others in order to generate the clustered volatility. [PUBLICATION ABSTRACT]
關聯 Journal of Economic Interaction and Coordination, 6(1), 41-59
資料類型 article
DOI http://dx.doi.org/10.1007/s11403-010-0075-5
dc.contributor 國貿系
dc.creator (作者) Yamamoto, Ryuichi
dc.creator (作者) 山本竜市zh_TW
dc.date (日期) 2011-05
dc.date.accessioned 13-Jan-2015 17:43:00 (UTC+8)-
dc.date.available 13-Jan-2015 17:43:00 (UTC+8)-
dc.date.issued (上傳時間) 13-Jan-2015 17:43:00 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/72857-
dc.description.abstract (摘要) Recent agent-based models have demonstrated that agents` herding behavior causes volatility clustering in stock markets. We examine economies where agents herd on others, yet they have limited sets of information on other agents to imitate. In particular, we conduct experiments on economies with agents with different levels of information sharing where agents can imitate: 1. the strategies of others but with an error, 2. the strategies of only a fraction of agents, or 3. the strategies of others, but update their parameters only by a proportion. In each experiment we change the likelihood that agents make errors to copy the strategy of others, the fraction of agents to herd, or the proportion of the parameter that agents update, in order to examine the effect of the different degrees of information sharing on volatility clustering. We show that volatility clustering tends to disappear when agents have limited information on the strategies of others, and agents need to imitate the strategy details of others in order to generate the clustered volatility. [PUBLICATION ABSTRACT]
dc.format.extent 442145 bytes-
dc.format.mimetype application/pdf-
dc.relation (關聯) Journal of Economic Interaction and Coordination, 6(1), 41-59
dc.title (題名) Volatility clustering and herding agents: does it matter what they observe?
dc.type (資料類型) articleen
dc.identifier.doi (DOI) 10.1007/s11403-010-0075-5en_US
dc.doi.uri (DOI) http://dx.doi.org/10.1007/s11403-010-0075-5en_US