The economist Michèle Tertilt concludes that countries that practice polygyny are less economically stable than those that practice monogamy. Polygynous countries usually have a higher fertility rate, fewer savings reserves, and a lower GDP. A 2014 study estimates that fertility would decrease by 40 percent, savings would increase by 70 percent and GDP would increase by 170 percent if polygyny were banned. Monogamous societies present a surge in economic productivity because monogamous men are able to save and invest their resources due to having fewer children. Polygynous societies have a higher concentration of men investing into methods of mating with women, whereas monogamous men invest more into their families and other related institutions.
The economist Michèle Tertilt concludes that countries that practice polygyny are less economically stable than those that practice monogamy Polygynou.s countries usually have a higher fertility rate, fewer savings reserves, and a lower GDP. A 2014 study estimates that fertility would decrease by 40 percent, savings would increase by 70 percent and GDP would increase by 170 percent if polygyny were banned. Monogamous societies present a surge in economic productivity because monogamous men are able to save and invest their resources due to having fewer children. Polygynous societies have a higher concentration of men investing into methods of mating with women, whereas monogamous men invest more into their families and other related institutions.