Compensated for Life: Sex Work and Disease Risk
利用厄瓜多尔性工作者的交易数据和性病生物标志，研究发现当地疾病率越高，不安全性行为的溢价越高，市场力量可能抑制性病流行的自我限制特性。
Sex workers draw a premium for engaging in unprotected sex. We theoretically motivate a test of whether this premium represents a compensating differential for disease, thereby mitigating sex workers' propensity to use condoms. Using transaction-level data and biological STI markers from sex workers in Ecuador, we exploit within-worker variation across local disease environments. We find that locations with low disease prevalence exhibit a very low, insignificant premium for unprotected sex. A one percentage point increase in the local disease rate increases the premium for noncondom sex by 33 percent. Market forces may curb the self-limiting nature of STI epidemics.