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We study the relationship between polygyny and HIV infection using nationally representative survey data with linked serostatus information from 20 African countries. Our results indicate that junior wives in polygynous unions are more likely to be HIV positive than spouses of monogamous men, but also that HIV prevalence is lower in populations with more polygyny. With these results in mind, we investigate four explanations for the contrasting individual- and ecological-level associations. These relate to (1) the adverse selection of HIV-positive women into polygynous unions, (2) the sexual network structure characteristic of polygyny, (3) the relatively low coital frequency in conjugal dyads of polygynous marriages ( coital dilution), and (4) the restricted access to sexual partners for younger men in populations where polygynous men presumably monopolize the women in their community ( monopolizing polygynists). We find evidence for some of these mechanisms, and together they support the proposition that polygynous marriage systems impede the spread of HIV. We relate these results to the debate about partnership concurrency as a primary behavioral driver for the fast propagation of HIV in some parts of sub-Saharan Africa. [ABSTRACT FROM AUTHOR]

The use of attitude questions is very common in comparative surveys as it allows researchers to gauge the perspectives of respondents toward social issues and explain cross-country differentials in attitudes. Comparative studies implicitly assume that equivalently worded items are measuring the same construct in different settings. However, the results of these studies might be questionable if the measurement invariant assumption is violated and different groups of respondents do not have a shared understanding of the attitude items. This paper uses item response theory to compare the measurement of items and to test whether equivalently worded attitude questions about family dissolution are understood in the same way across various communities in India, Malaysia, Pakistan and the Philippines. The paper also examines the interaction between the respondent's gender, the sex of the spouse leaving the marriage and the responses to the attitude questions about acceptability of family dissolution. [ABSTRACT FROM AUTHOR]

The aim of this study was to contrast the likelihood that a husband's elderly mother receives financial assistance from a couple with that of a wife's mother. Prior U.S.-based research has documented a strong bias toward transfers to wives' parents. The authors aimed to extend this literature to Mexico, where financial help from adult children is a critical source of support for a rapidly aging population lacking institutional assistance. The authors' approach to modeling competition between mothers accounted for the nature of their need. The results demonstrate that among mothers of similar financial need, a husband's mother is twice as likely to receive financial assistance as a wife's mother. In contrast, when faced with personal care needs, a wife's mother is disproportionately favored. These results reflect gender differences in Mexican adult children's responsibility for family members' financial and physical well-being. The findings uncover new complexity in the patterns by which couples transfer money to parents of different lineage. [ABSTRACT FROM AUTHOR]

We review the relationship between polygyny and HIV and identify a positive individual-level correlation, and a negative ecological correlation. We subsequently examine two mechanisms that contribute to the individual-level correlation. First, we find that men in polygynous marriages have more extramarital sex than men in monogamous unions (both in terms of self reports and in terms of spousal reports of the suspicion of adultery). Second, we find evidence of adverse selection of HIV positive women into polygynous unions via an investigation of the relationship between marriage order and polygyny status. We conclude with reflections about possible explanations for the distinct individual and ecological correlations. [ABSTRACT FROM AUTHOR]