期刊名称：Discussion Paper Series / Universität Heidelberg, Department of Economics
出版年度：2013
卷号：2013
出版社：Universität Heidelberg, Department of Economics
摘要：To make predictions with theories, usually we assume an individual's char-acteristics such as uncertainty preferences to be stable over time. In thispaper, we analyze the stability of ambiguity preferences experimentally.We repeatedly elicit ambiguity attitudes towards multiple 3-color Ellsbergurns over a period of two months. In our data, 57% of the choices are con-sistent with stable preferences over the time of observation. This share issigni cantly higher than random choices would suggest, but signi cantlylower than the level of consistency in a control treatment without a timelag (71%). Interestingly, for subjects who are able to recall their decisionafter two months correctly, the share of consistent choices does not dropsigni cantly over time
