非专家提升疫苗需求有效性的实验证据
Experimental Evidence on the Effectiveness of Nonexperts for Improving Vaccine Demand
American Economic Journal: Economic Policy · 2024 · [{"name": "Marcella Alsan", "affiliation": ["Dana-Farber/Harvard Cancer Center"]}, {"name": "Sarah Eichmeyer", "affiliation": ["Bocconi University"]}]
中文摘要
我们通过实验改变信号与信息传递者，以识别哪种组合最能提高美国弱势群体——未受过大学教育的黑人和白人男性——的疫苗需求。我们的主要发现是，普通人（与受众身份相符的非专家信息传递者）在促进疫苗接种方面最为有效，在接种意愿最低的人群中尤为明显。这一发现表明，专家资质更高与专家对低社会经济地位群体的社会亲近度较低这二者之间存在权衡；在低信任情境下，较低的社会亲近度可能会削弱可信度。
Abstract
We experimentally vary signals and senders to identify which combination will increase vaccine demand among a disadvantaged population in the United States-Black and White men without a college education. Our main finding is that laypeople (nonexpert concordant senders) are most effective at promoting vaccination, particularly among those least willing to become vaccinated. This finding points to a trade-off between the higher qualifications of experts on the one hand and the lower social proximity to low-socioeconomic-status populations on the other hand, which may undermine credibility in settings of low trust.