Working Papers:

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An Equilibrium Model of the African HIV/AIDS Epidemic
, March 2013, under revision for Econometrica
(with J. Greenwood, P. Kircher and M. Tertilt)

Eleven percent of the Malawian population is HIV infected. Eighteen percent of sexual encounters are casual. A condom is used one quarter of the time. A choice-theoretic general equilibrium search model is constructed to analyze the Malawian epidemic. In the developed framework, people select between different sexual practices while knowing the inherent risk. The analysis suggests that the efficacy of public policy depends upon the induced behavioral changes and general equilibrium effects that are typically absent in epidemiological studies and small-scale field experiments. For some interventions (some forms of promoting condoms or marriage), the quantitative exercise suggests that these effects may increase HIV prevalence, while for others (such as male circumcision or increased incomes) they strengthen the effectiveness of the intervention. The underlying channels giving rise to these effects are discussed in detail.
Discussion in VOX


Publications:

Technology and the Changing Family:
A Unified Model of Marriage, Divorce, Educational Attainment and Married Female Labor-Force Participation
, AEJ: Macro,
accepted
(with J. Greenwood, N. Guner and G. Kocharkov)

Check out Nezih Guner's TED talk with material from this paper


"Why Not Settle Down Already?" A Quantitative Analysis of the Delay in Marriage, International Economic Review, accepted
(with D. Weiss)

Marry your Like: Assortative Mating and Income Inequality (Revised Version), originally published in American Economic Review P&P, 2014, 104(5), 348-353.
(with J. Greenwood, N. Guner and G. Kocharkov)

"Migration and the Regional Income Distribution in Brazil", Pesquisa e Planejamento Econômico, 2007, v. 37 (3), 405-425. (in Portuguese)
(with P. C. Ferreira)



Work in Progress:

Risky Income, Risky Families: Marriage and Divorce in a Volatile Labor Market 
(with D. Weiss) 

Family Planning and Development: Aggregate Effects of Contraceptive Use  
(with T. Cavalcanti and G. Kocharkov)