Migrants without an urban hukou spend 30% less than otherwise similar urban residents, according to research by Binkai Chen of the Central University of Finance and Economics, Ming Lu of Fudan University and Ninghua Zhong of Hong Kong University of Science and Technology.

ECONOMIST: Chinese consumption is about much more than shopping

It may not have the ring of Harvard Business School, but Hong Kong University of Science and Technology's M.

WSJ: Hong Kong M.B.A. Program Won Elite Status Fast

Only a quarter of migrant workers in the cities were covered by pensions in 2010, compared with four-fifths of locals, according to Albert Park of the Hong Kong University of Science and Technology.

ECONOMIST: China is beginning to face up to its pension problems