Controlling Starting-Point Bias in Double-Bounded Contingent Valuation Surveys
研究了双边界条件估值调查中起始点偏差问题，提出一种控制该偏差的方法，相比单次二分选择问题能提高效率。
<i>In this paper, we study starting-point bias in double-bounded contingent valuation surveys. This phenomenon arises in applications that use multiple valuation questions. Indeed, response to follow-up valuation questions may be influenced by the bid proposed in the initial valuation question. Previous researches have been conducted in order to control for such an effect. However, they find that efficiency gains are lost when we control for undesirable response effects, relative to a single dichotomous choice question. Contrary to these results, we propose a way to control for starting-point bias in double-bounded questions with gains in efficiency.</i>