Child participation,nature of work,and fertility demand: a theoretical analysis

A model of utility maximization with home production of children and standard of living is used to analyze the fertility behavior of a subsistence farming household in an agricultural lesser developed country. Assuming children as both consumer and producer goods, and assuming a prestige cost of their participation in labor force, the author derived alternative levels of fertility demand. The following different conditions of child participation were identified depending upon the size of the prestige cost and the resultant net gain from child work: (1) participation in wage-labor, if marginal child income from the family farm is less than marginal wage income; (2) participation in family farm works only, if the larger wage income is neutralized by a higher prestige cost, implying a lower child contribution; (3) participation in family farm works only, if its marginal child income is greater than wage income, thus providing the largest child contribution; and (4) no participation in labor force at all, implied by a very high prestige cost and resulting in no child contribution. The household demands a larger number of children under conditions (1) and (3) than under conditions (2) and (4). The results are then used to draw inferences regarding fertility behavior across different landholding households. It appears that landholding reduces fertility initially, increases it at the intermediate levels, and then decreases it when the household becomes a non-cultivating rental income earner. The nonmonotonic landholding-fertility relationship explains the contradictory empirical evidence which exists in the literature while also suggesting important implications for fertility regulation policy.