Brazil Census - variable to identify informal v. formal workers

Hi, I am working with the Brazil Census data for years 1980, 1991, 2000, and 2010. Research papers that also use the Brazil Census data reference a variable that identifies workers employed in the formal sector (with a signed work card) and workers employed in the informal sector. Does the IPUMS Brazil Census Data contain this variable? If so, what is the variable named?

Thank you for your help. – LC

Although I am unfamiliar with the specific research you are referring to, you may find the information you are looking for in the “source variables” under the work variables grouping. Note that you will need to have the relevant Brazil samples selected to see the Brazilian source variables in the previous link. I am not able to find a variable that specifically identifies workers with a signed work card, however, you may be able to use the information identified by EMPSTAT or CLASSWKR source variables.