How Beliefs about HIV Status Affect Risky Behaviors: Evidence from Malawi, Second Version
This paper examines whether and to what extent changes in beliefs about own HIV status induce changes in risky sexual behavior using data from married males living in three regions of Malawi. Risky behavior is measured as the propensity to engage in extramarital affairs. The empirical analysis is based on panel surveys for years 2006 and 2008 from the Malawi Diffusion and Ideational Change Project (MDICP), which contain detailed information on beliefs about HIV status and on sexual behaviors. Many individuals change their beliefs over time, because of opportunities to get tested for HIV and informational campaigns. We estimate the effect of belief revisions on the propensity to engage in extra-marital affairs using a panel data estimator developed by Arellano and Carrasco (2003), which accommodates unobserved heterogeneity as well as belief endogeneity arising from the dependence of current beliefs on lagged behaviors. We find that downward revisions in the belief of being HIV positive lead to an increased propensity to engage in extra-marital affairs and upward revisions to a decreased propensity. The estimates are shown to be robust to underreporting of affairs. Using our estimates and a standard epidemeological model of disease transmission, we find that increasing the responsiveness of beliefs to test results would reduce the HIV transmission rate as infected individuals reduce sexual behavior and decrease the likelihood that uninfected persons have contact with an HIV-positive person.
|Date of creation:||01 Aug 2009|
|Date of revision:||27 Jan 2010|
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- Michael Kremer, 1996. "Integrating Behavioral Choice into Epidemiological Models of AIDS," The Quarterly Journal of Economics, Oxford University Press, vol. 111(2), pages 549-573.
- Douglas Staiger & James H. Stock, 1997.
"Instrumental Variables Regression with Weak Instruments,"
Econometric Society, vol. 65(3), pages 557-586, May.
- Douglas Staiger & James H. Stock, 1994. "Instrumental Variables Regression with Weak Instruments," NBER Technical Working Papers 0151, National Bureau of Economic Research, Inc.
- Rebecca L. Thornton, 2008. "The Demand for, and Impact of, Learning HIV Status," American Economic Review, American Economic Association, vol. 98(5), pages 1829-1863, December.
- Nicholas Wilson, 2010.
"Antiretroviral Therapy and Demand for HIV Testing: Evidence from Zambia,"
Center for Development Economics
2011-01, Department of Economics, Williams College.
- Wilson, Nicholas, 2016. "Antiretroviral therapy and demand for HIV testing: Evidence from Zambia," Economics & Human Biology, Elsevier, vol. 21(C), pages 221-240.
- Nicholas Wilson, 2010. "Antiretroviral Therapy and Demand for HIV Testing: Evidence from Zambia," Department of Economics Working Papers 2010-23, Department of Economics, Williams College.
- FFF1Georges NNN1Reniers, 2003. "Divorce and Remarriage in Rural Malawi," Demographic Research Special Collections, Max Planck Institute for Demographic Research, Rostock, Germany, vol. 1(6), pages 175-206, September.
- David Canning, 2006. "The Economics of HIV/AIDS in Low-Income Countries: The Case for Prevention," Journal of Economic Perspectives, American Economic Association, vol. 20(3), pages 121-142, Summer.
- Tomas J. Philipson & Richard A. Posner, 1995. "A Theoretical and Empirical Investigation of the Effects of Public Health Subsidies for STD Testing," The Quarterly Journal of Economics, Oxford University Press, vol. 110(2), pages 445-474.
- Mechoulan Stéphane, 2004. "HIV Testing: a Trojan Horse?," The B.E. Journal of Economic Analysis & Policy, De Gruyter, vol. 4(1), pages 1-26, August.
- Michael A. Boozer & Tomas J. Philipson, 2000. "The Impact of Public Testing for Human Immunodeficiency Virus," Journal of Human Resources, University of Wisconsin Press, vol. 35(3), pages 419-446.
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