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We show how an apparently welfare improving phenomenon like an increase in the wage of the male member of a family can result in a seemingly paradoxical result where the entire family is worse off. There is male and female specialization in activities such that the female member is involved in a community level public good. A rise in the male wage leads to adjustment of household time allocation with the male working more in the market and less on household activities. In turn, the female works more on household activities and less on the community public good, failing to internalize the negative externality imposed on other members of the community. Under quite general conditions the implied negative effect can more than offset the positive effect of the male wage raise, and the entire family is worse off. The theoretical results are consistent with empirical findings in the literature. Copyright 2008 , Oxford University Press.