Abstract
The factors that explain the unequal contributions to housework by husband and wife have been repeatedly analyzed in the field of research into family. A few plausible models have been proposed, among which the relative resource model, available time model, ideology/gender model and necessity model have been mainly discussed. In this paper, taking the difference in contribution between husband and wife in Japan, rather than their individual contribution, as the response variable, those models are validated through the detailed interpretations of the estimated result of several statistical models. As a result, the relative resource model is found to have the most explanatory power regarding the division of labor among Japanese couples.
