Cumulative impact neglect in processing sequential changes
研究发现消费者在处理租金上涨或价格折扣等序列变化时，容易忽视早期结果对最终总额的累积影响，从而做出次优选择；并提出一种助推方法帮助消费者减少这种偏差。
Abstract We demonstrate that decision contexts that involve sequential numerical changes over time can lead to suboptimal consumer choices in both incentivized and hypothetical studies. This is because, for such changes, an earlier outcome has a cumulative effect on the final total, which consumers tend to ignore. We document the prevalence of consumers' tendency to neglect this cumulative impact when processing sequential rent increases and price discounts as consumers focus on the naïve totals and trends formed by the consecutive price changes and choose economically inferior options. We propose a nudge that helps alert consumers about the cumulative effects and decrease their tendency to fall prey to this bias. We discuss the theoretical contributions as well as the implications for consumers, managers, and policymakers.