https://www.sciencedaily.com/releases/2022/03/220331101532.htm

Rational economic theory suggests parenthood and the resulting income and time pressure should lead to a more efficient sharing of household chores. However, the study of more than 6,000 heterosexual North American married households revealed this is not the case.

"Of course, we understand why specialized division of labour exists, but there is no reason for this specialization to be gender-specific. Traditional division has been conventionally explained by men earning more and working longer hours and has a certain logical appeal," said Dr Joanna Syrda of the University's School of Management.