Tangible interests fuel abuses
Hukou in metropolises are linked with core interests such as better education, medical care and social security, all of which are appealing to ordinary people; however, there are too high requirements for obtaining these hukou, especially as the populations in the metropolises are too big and need to be controlled. The demand is the root cause of illegal hukou trade and won't diminish unless reform unlinks hukou with these interests.
zjjzx.cn, Aug 15
Only when small-and medium-sized cities are more appealing to residents will the desire to migrate to metropolises be curbed. That requires the State improve public services, such as education and healthcare, in smaller cities and boost their development in the long run so that people are willing to reside there.