In a poor district of Mexico City, Fiomena Reyes sends her 12-year-old daughter to school and takes her four-month-old for regular medical check-ups. What is more, she gets paid for it.

Ms Reyes says the cash payment of about US$100 (€67, £52) a month that the state provides makes a big difference to her family. “I spend the money on food and shoes. It has helped us keep our children healthy and means they can go to school to have a better life.”