Risk Attitudes, Sample Selection, and Attrition in a Longitudinal Field Experiment
利用丹麦民事登记数据与纵向现场实验中的风险态度信息，评估风险偏好的时间稳定性，并发现纠正样本选择与流失效应后，风险偏好具有时间稳定性。
We evaluate the temporal stability of risk preferences using a remarkable data set that combines sociodemographic information from the Danish Civil Registry with information on risk attitudes from a longitudinal field experiment. Our econometric model accounts for endogenous sample selection and attrition processes that may confound inferences about temporal stability. Our experimental design builds in randomization on the incentives for participation that facilitates empirical identification of the model. In general, we find evidence consistent with temporal stability after correcting for the effects of selection and attrition. When neglected, these effects change our inferences in an economically and statistically significant manner.