Editor's Note: China is committed to promoting gender equality, but woman scientists still account for a small proportion of the country's 70 million or so "scientific and technological workers". In this Policy Review page, we present readers with some of the challenges facing woman scientists as they still suffer from social bias against their academic ambition.

China still has an abundance of rural work force and has yet to reach a turning point towards a labor shortage, according to a research team from Henan University of Economics and Law.

The Lewis turning point is a term used in economic development to describe a time when there is no longer abundant labor supply, pushing up a country's general wage level.