Comparative Risk Aversion in the Presence of Ambiguity
在平滑模糊模型中刻画了风险厌恶的增加，发现其与期望效用下的情况有本质不同，并阐明了模糊感知和态度如何依赖于风险厌恶。
This paper suggests a characterization of increases in risk aversion within the smooth ambiguity model by Klibanoff, Marinacci, and Mukerji (2005). I show that an increase in risk aversion is qualitatively different from that under expected utility, due to the incomplete separation between risk and ambiguity attitude. The analysis clarifies how ambiguity perception and attitude depend on risk aversion.