Julian Jamison

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OBJECTIVE The authors evaluated the use of conditional cash transfers as an HIV and sexually transmitted infection prevention strategy to incentivise safe sex. DESIGN An unblinded, individually randomised and controlled trial. SETTING 10 villages within the Kilombero/Ulanga districts of the Ifakara Health and Demographic Surveillance System in rural(More)
The Policy Research Working Paper Series disseminates the findings of work in progress to encourage the exchange of ideas about development issues. An objective of the series is to get the findings out quickly, even if the presentations are less than fully polished. The papers carry the names of the authors and should be cited accordingly. The findings,(More)
Reflecting an increasing awareness of the importance of treatment adherence on outcomes in psychiatric populations, the National Institute of Mental Health (NIMH) convened a panel of treatment adherence researchers on September 27-28, 2007 to discuss and articulate potential solutions for dealing with methodological adherence research challenges. Panel(More)
We thank Google.org and Google.com for funding. The Principal Investigators and Innovations for Poverty Action retained full intellectual freedom throughout this study. We also thank MTN, Grameen Technology Center and Google for participation and collaboration and adherence to experimental protocols. IRB approval for human subjects protocols granted by Yale(More)
Social Distance and Trust: Experimental Evidence from a Slum in Cairo While strong social ties help individuals cope with missing institutions, trade is essentially limited to those who are part of the social network. We examine what makes the decision to trust a stranger different from the decision to trust a member of a given social network (a friend), by(More)
We introduce a modification to the two-timescale games studied in the evolution of preferences (EOP) literature. In this modification, the strategic process occurring on the long timescale is learning by an individual across his or her lifetime, not natural selection operating on genomes over multiple generations. This change to the longer timescale removes(More)
Multiple Selves in Intertemporal Choice Julian Jamison and Jon Wegener Abstract: We propose that individuals consider future versions of themselves to truly be separate persons, not simply as a convenient modeling device but in terms of actual brain systems and decision‐making processes. Intertemporal choices are thus quite literally strategic interactions(More)
Economic theory predicts that in a first-price auction with equal and observable valuations, bidders earn zero profits. Theory also predicts that if valuations are not common knowledge, then since it is weakly dominated to bid your valuation, bidders will bid less and earn positive profits. Hence, rational players in an auction game should prefer less(More)