The backfiring effects of monetary and gift incentives on Covid-19 vaccination intentions
基于中国1365人的假设调查实验，发现8-125美元的金钱或礼品激励反而降低新冠疫苗接种意愿，且两种激励的反作用效果相当。
We provide evidence that material inducements for Covid-19 vaccination may backfire. Results from a hypothetical survey experiment in China (N = 1365) show incentives of 8–125 USD reduce vaccine uptake intentions compared to simply offering vaccination for free. Ours is the first Covid-19 vaccine study to separately consider and directly compare the effects of monetary and goods-based incentives, both of which have been widely employed by countries seeking to increase uptake; we demonstrate that both types backfire equally. Results are compared against the burgeoning literature on Covid-19 vaccine incentives.