Sensitivity of Contingent Valuation to Alternative Payment Schedules
研究发现受访者对一次性支付和分期支付的区分有限，隐含贴现率很高，表明支付计划敏感性是条件价值评估中值得进一步研究的重要因素。
Insensitivity to payment schedule, wherein respondents do not adequately differentiate between a one-time payment and a series of payments may be an important, but often overlooked factor in the design, interpretation, and use of contingent valuation studies. Several contingent valuation experiments involving a familiar private good and a less familiar environmental commodity indicate that although respondents distinguished between lump sum and periodic payment schedules, implicit discount rates were very high, suggesting that sensitivity to payment schedule is an important subject for further study.