Múltiplo emprego no Brasil: Uma análise da oferta de trabalho usando dados da PNAD

Abstract

The present study has as objective to analyze the determinants of labor supply in the secondary labor market in Brazil. An agent is said to belong to the secondary labor market when he spends hours working in a second occupation, in addition to having a primary job. To reach the objective, data from the National Household Sample Survey (PNAD), from 2004 and 2014, were used and a model with a limited dependent variable, tobit, was used in addition to the descriptive analysis. The results indicate that the market in question is composed mostly of men, heads of families and workers who have a higher educational level when compared to those with only one occupation. Individuals in the secondary market have a salary advantage in the main occupation and spend fewer hours per week in the main job. From the estimated supply function, it is shown that male individuals offer more hours of work, a result that is in agreement with part of the international literature. Age is positively related to an offer, in addition to having a main occupation in the private, formal, migrant and residing metropolitan areas, they have a negative impact. From the theoretical viewpoints tested, the reason for restricting hours to the effect and reduced the supply, already the reason for age insecurity in the opposite direction expected, increasing a job offer. The results of this study reinforce the importance of this part of the Brazilian labor market, also reducing the gaps in this area of research and reiterates the importance of socioeconomic variables in the determination of supply.