The HIV/AIDS epidemic is a great health and development challenge. According to the World Health Organization (WHO), 36.7 million people were living with the HIV virus in 2015. Around 70 percent of those lived in Sub-Saharan Africa. It is well known that number of sexual partners matters for the transmission of HIV. To the extent that marriage reduces the number of partners that a person has it may play an important role in mitigating the transmission of HIV. Despite its significance, the literature has not provided models in which marriage provides a haven for safer sex. This paper investigates, using a calibrated choice-theoretic general equilibrium model, how policies aimed at increasing marriage rates affect HIV prevalence rates. The analysis highlights the role that marriage as an institution plays in the transmission of HIV. It also illustrates that policies aimed at marriage may have important effects.
The Role of Marriage in Fighting HIV: A Quantitative Illustration for Malawi
American Economic Review P&P, 2017, 107(5): 158–162
In a quantitative equilibrium model of sexual behavior and HIV/AIDS transmission we study policies that encourage long-term partnerships.
Economic Journal, 2021 131: 713-744. With Ericson, Spinnewijn &, Starc Demand for insurance can be driven by high risk aversion or high risk, and we show how to separate the two using observed market shares. Go to paper
Journal of Economic Theory, 2009, 114(2), pp. 445-471. With Manolis Galenianos. We study wage dispersion and (in)efficiency in directed search when workers can strategically apply for multiple jobs but firms can only make one offer. Go to paper
American Economic Review, 2015, Vol 105 (10), 3030-3060. With Leo Kaas. We propose a tractable competitive search model with heterogeneous multi-worker firms, and investigate firm growth and business cycles. Go to paper
American Economic Journal - Macroeconomics, forthcoming 2022, with Michèle Belot and Paul Muller. In a field experiment, we study how job seekers respond to posted wages by assigning wages randomly to pairs of otherwise similar vacancies in a large number of professions. Higher wages attract significantly more interest, but still a non-trivial number of applicants only reveal an interest in the low wage vacancy - qualitatively in line with a directed search model with multiple applications and on-the-job search. Go to paper
Journal of Economic Theory, 2010/145, 1354-1385. With Jan Eeckhout. Search affects competing mechanisms: if meetings with low types reduce those of high types, price posting and market separation replace auctions. Go to paper
Review of Economic Studies, 2019 86(4): 1411-1447. With Michèle Belot and Paul Muller. We develop and evaluate experimentally a novel tool that redesigns the job search process by providing tailored online advice about related occupations. Go to paper