Some models make explicit the processes of negotiation within the household. Blundell, Browning and others (1994) for example, demonstrate that women's earnings can modify the outcome of household decisions. These household bargaining models allow for different preferences within tlie household widi the potential for disagreement, but they are based on die assumptions of exogenous preference, self-interested motives and individuals having die ability to make choices. A large body of literature on households in developing countries demonstrates diat the household is not only die locus of unpaid work activities but also a site of gender inequalities in workload and resource allocation.