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New Publication Looking at Maternal Investment in Marriages

New publication by Annemarie Hasnain and Kristin Snopkowski in the journal, Evolution and Human Behavior.  Their article, “Maternal investment in arranged and self-choice marriages: A test of the reproductive compensation and differential allocation hypothesis in humans” examines how mothers invest in their children depending on their marriage type: arranged marriage or self-choice using a longitudinal sample of Indonesian women.  Results show no statistically significant differences for most measures, including birth weight, breastfeeding duration, and offspring height and weight.  But, there is a small statistically significant difference in the number of children born and living children, where women in arranged marriages have slightly fewer children than those in self-choice marriages.  This mirrors some research in other species that show that females have greater reproductive success when they are free to choose their own mating partners.