Professional Politicians or Class Representatives? A Longitudinal Analysis of Legislative Representation in Brazil’s Democracy

This dataset contains longitudinal information on the socioprofessional composition of members of the Brazilian Chamber of Deputies elected between 1998 and 2022. It includes occupational backgrounds, partisan and ideological alignments, and classification codes used in the analysis of political professionalization and class-based representation. The dataset was constructed from official electoral data provided by the Brazilian Superior Electoral Court (TSE) and processed with transparent coding procedures. Replication files include scripts for data cleaning, recoding of occupational categories, and statistical analysis (chi-square tests, Cramér’s V, multinomial logistic regression, and longitudinal stratified analyses). Together, these resources allow full reproducibility of the findings presented in the associated article, enabling scholars to explore patterns of recruitment, professionalization, and social representation in Brazilian democracy over nearly three decades.