Mortality risk information, survival expectations and sexual behaviours

Alberto Ciancio, Adeline Delavande, Hans-Peter Kohler, Iliana V. Kohler

Research output: Contribution to journalArticlepeer-review


We investigate the impact of a randomised information intervention about population-level mortality on health investment and subjective health expectations. Our focus is on risky sex in a high-HIV-prevalence environment. Treated individuals are less likely to engage in risky sexual practices one year after the intervention, with, for example, an 8% increase in abstinence. We collected detailed data on individuals’ subjective expectations about their own and population survival, as well as other important health outcomes. Our findings emphasise the significance of integrating subjective expectation data in field experiments to identify the pathways that lead to behavioural change.
Original languageEnglish
Article numberuead116
Pages (from-to)1431–1464
Number of pages34
JournalEconomic Journal
Issue number660
Early online date25 Jan 2024
Publication statusPublished - May 2024


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