Poder de barganha e participação dos cônjuges no mercado de trabalho brasileiro: uma análise baseada em modelos de escolha coletiva

Abstract

This research analyzes the determinants of spousal participation in the Brazilian labor market using an approach based on collective choice models. Utilizing microdata from the Continuous National Household Sample Survey (PNADC) and employing Probit and Heckit models, the study identifies how individual and socioeconomic factors influence decisions to join the Economically Active Population (EAP) and allocate time to paid work. The findings reveal that higher wages reduce the likelihood of labor market participation, reflecting the income effect. However, for those already employed, higher wages increase working hours, indicating the presence of the substitution effect. Two distribution factors were tested, which are variables that affect the distribution of bargaining power among household members without directly influencing individual preferences or the family budget constraint. Adjusted age differences and non-labor income participation significantly impact bargaining power distribution within families. Adjusted age differences negatively affect wives' labor market participation, particularly among childless couples. Women with significantly older husbands are less likely to join the labor market, while husbands in such contexts are more likely to participate and work more hours. Control over non-labor income proved relevant to bargaining power, especially for wives, who exhibited greater flexibility in reducing their labor supply. The study underscores the importance of collective models in understanding intrafamily dynamics, showing that labor decisions are shaped by spousal bargaining rather than the predictions of traditional unitary models. In terms of public policy, the research recommends implementing incentives for professional qualifications targeting childless couples and providing childcare support for couples with children. These measures aim to expand families’ options and promote their well-being more comprehensively.