This implies that women's time in the labour market is negatively affected by childcare responsibilities while husbands are more likely to spend more time in the workplace. Presence of older parents on the other hand decreases wives' share of household, which suggests that they are likely to help in some household chores. Its negative effect on husbands' share of market work may be explained by the cultural practice of having older parents live with their sons' families, and thus the incentive for husbands to spend more time at home.