Cubitt Robin, van de Kuilen Gijs, Mukerji Sujoy
1School of Economics and Centre for Decision Research and Experimental Economics, University of Nottingham, Nottingham, UK.
2Department of Economics, Tilburg University, Tilburg, The Netherlands.
Theory Decis. 2018;85(3):275-302. doi: 10.1007/s11238-018-9657-9. Epub 2018 Mar 19.
We report an experiment where each subject's ambiguity sensitivity is measured by an ambiguity premium, a concept analogous to and comparable with a risk premium. In our design, some tasks feature known objective risks and others uncertainty about which subjects have imperfect, heterogeneous, information ("ambiguous tasks"). We show how the smooth ambiguity model can be used to calculate ambiguity premia. A distinctive feature of our approach is estimation of each subject's subjective beliefs about the uncertainty in ambiguous tasks. We find considerable heterogeneity among subjects in beliefs and ambiguity premia; and that, on average, ambiguity sensitivity is about as strong as risk sensitivity.
我们报告了一项实验，其中每个受试者的模糊性敏感度是通过模糊性溢价来衡量的，这一概念类似于风险溢价且与之可比。在我们的设计中，一些任务具有已知的客观风险，而另一些任务则存在受试者拥有不完美、异质信息的不确定性（“模糊任务”）。我们展示了如何使用平滑模糊模型来计算模糊性溢价。我们方法的一个显著特点是估计每个受试者对模糊任务中不确定性的主观信念。我们发现受试者在信念和模糊性溢价方面存在相当大的异质性；而且，平均而言，模糊性敏感度与风险敏感度大致相当。
