Informal sector jobs in developing countries often voluntary, not forced.
The article looks at how people move between different types of jobs in countries like Argentina, Brazil, and Mexico. It uses a simple model to understand these job changes and looks at data to see how long people stay in different types of work. The results show that many people choose to work informally, especially if they are self-employed. However, younger workers are more likely to take informal jobs because they have to, not because they want to.