永久居留
A recent phenomenon, the migration of rural Chinese workers began in 1984 when the Regulations of Permanent Residence Registration became less punitive and allowed people to move to find employment. People left rural areas to escape poverty, and females left due to the lack of local opportunities for women. In the cities, women could find new, low-paid factory-based jobs that did not require highly skilled workers. According to national statistics, the ratio of male to female migrant workers averages 2:1, and an estimated 30-40 million of the migrant women work in the cities, namely Hong Kong and Shenzhen.