Even when women are the primary wage-earner in a household, they do two to four times more of the home production work — the cooking and cleaning — than men. HCEO member Corinne Low documented the inefficiency in this pattern with coauthors Kyle Hancock and Jeanne Lafortune. Households would be better off if lower-earning men adjusted their hours to take on more household work and let higher-earning women work more hours outside the home.