sentences:  Even before the Chinese economy started to turn down, there were concerns that it was facing a middle income trap, widely identified by economists as showing the danger of a Lewis Turning Point, a phenomenon observed in history of Japan, which showed that rapid urbanization led to a growth in manufacturing.However, eventually, the phenomenon comes to an end as wages rise and the country's competitive edge disappears.The number of migrant workers in China has been increasing at a slower pace since 2005.