After falling steeply in the late 1990s, China's household saving rate has been more or less steady since 2000 (see chart 9).

ECONOMIST: The frugal giant

In China's system of household registration (known as hukou), children born to rurally registered parents count as rural, even if their parents have migrated to the city, and regardless of where they themselves were born.

ECONOMIST: Problems for migrants

One of the greatest issues for China's 250 million migrant workers is the "hukou" system of household registration.

CNN: China's workforce at a crossroads