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Financial incentives are a promising HIV prevention strategy. This paper assesses the effect on HIV incidence of a lottery program in Lesotho with low expected payments but a chance to win a high prize conditional on negative test results for sexually transmitted infections. The intervention resulted in a 21.4 percent reduction in HIV incidence over two years. Lottery incentives appear to be particularly effective for individuals willing to take risks. This paper estimates a model linking sexual behavior to HIV incidence and finds that risk-loving individuals reduce the number of unprotected sexual acts by 0.3/month for every $1 increase in the expected prize.

  • Using Lotteries to Incentivize Safer Sexual Behavior
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Resource Information

Document Type: (PDF) Download
Author/s: Martina Björkman Nyqvist, Lucia Corno, Damien de Walque, Jakob Svensson
Countries: Lesotho
Date of Publication: March 2015

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