Are Choice Experiments Incentive Compatible? A Test with Quality Differentiated Beef Steaks
比较了假设与非假设情境下消费者对牛排选择实验的回答，发现假设回答高估了购买概率和总支付意愿，但边际支付意愿在两种情境下无显著差异。
This study compares hypothetical and nonhypothetical responses to choice experiment questions. We test for hypothetical bias in a choice experiment involving beef ribeye steaks with differing quality attributes. In general, hypothetical responses predicted higher probabilities of purchasing beef steaks than nonhypothetical responses. Thus, hypothetical choices overestimate total willingness‐to‐pay for beef steaks. However, marginal willingness‐to‐pay for a change in steak quality is, in general, not statistically different across hypothetical and actual payment settings.