Learning under Ambiguity - A Note on the Belief Dynamics of Epstein and Schneider (2007)
Learning under Ambiguity - A Note on the Belief Dynamics of Epstein and Schneider (2007)
复制标题
歧义下的学习——关于爱泼斯坦和施耐德信念动态的注解 (2007)
DOI:
10.11588/heidok.00017512
复制
发表时间:
2007
期刊:
影响因子:
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通讯作者:
中科院分区:
文献类型:
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作者:
Epstein and Schneider (2007) develop a framework of learning under ambiguity, generalizing maxmin preferences of Gilboa and Schmeidler (1989) to intertemporal settings. The specific belief dynamics in Epstein and Schneider (2007) rely on the rejection of initial priors that have become implausible over the learning process. I demonstrate that this feature of ex-post rejection of theories gives rise to choices that are in sharp contradiction with ambiguity aversion. Concrete, the intertemporal maxmin decision-maker equipped with such belief dynamics prefers, under prevalent conditions, a bet in an ambiguous urn over the same bet in a risky urn. I offer two modifications of their framework, each of which is capable of avoiding this anomaly.
DOI:
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发表时间:
2011
期刊:
影响因子:
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作者:
S. Condie;Jayant V. Ganguli
通讯作者:
Jayant V. Ganguli