Murphy, James; Allen, P.; Stevens, Thomas; Weatherhead, … - In: Environmental & Resource Economics 30 (2005) 3, pp. 313-325
reports the results of a meta-analysis of hypothetical bias in 28 stated preference valuation studies that report monetary …. We find that a choice-based elicitation mechanism is important in reducing bias. We provide some evidence that the use of … student subjects may be a source of bias, but since this variable is highly correlated with group experimental settings, firm …