Risky Sex in a Risky World: Sexual Behavior in an HIV/AIDS Environment
构建了一个两期不确定性决策模型，分析为何在HIV/AIDS认知提高的情况下，许多HIV高发国家的个体仍不采取安全性行为，发现对未来健康的不确定性是重要驱动因素，对贫困国家的艾滋病政策制定有参考价值。
Abstract In spite of increased awareness of HIV/AIDS, unprotected casual sex is still widespread in many HIV‐infected countries. In this paper, a two‐period model for sexual decisions under uncertainty is developed. The results suggest that, for individuals with limited access to HIV treatment, the uncertainty about their future health could be an important factor driving unsafe sexual practices. The results support the empirical finding of a weak link in poor countries between sexual behavior, HIV frequency, and HIV knowledge. Therefore, this suggests that an AIDS policy needs to be calibrated in order to fit within different social contexts.