Designing Transactions without Framing Effects in Iterative Question Formats

摘要

Several studies document that iterative question formats used in contingent valuation studies produce anomalies in respondent behavior that appear to threaten the validity of welfare estimates. By decomposing iterative question formats into their ascending and descending sequences, we show that these anomalies occur only in ascending sequences. We describe the conditions under which comparable patterns of behavior arc likely to be found in other iterative question formats that begin with a discrete willingness-to-pay question. We then develop a unified explanation of these anomalies using our model of framing based on prospect theory.