Researchers from the National Research University Higher School of Economics have linked the choice of a child’s month of birth with family income. The researchers write that the higher the family income, the more often the couple plans to have a child in the summer.
A similar trend has been recorded in a number of Russian regions. Experts attribute this seasonality to holidays, migration, seasonality of marriages, as well as physical activity and dietary patterns. So, experts write, you can save on buying warm outerwear for pregnant women.