“…In the Harris-Todaro model, rural-urban migration is driven by expected income differentials, which in turn are a function of rural-urban wage differentials, urban unemployment, and marginal productivity in agriculture (rural wages). 9 For the case of China, Li et al (2012) note that wages are now rising in China, and several authors explicitly focus on the Lewis turning point (when a shortage of rural labor drives up wages): according to Zhang et al (2011) and Cai and Du (2011), China has reached or exceeded the Lewis turning point, whereas according to Golley and Meng (2011), Ge andDas andN'Diaye (2013), it has not. Knight et al (2011) have it both ways: simultaneous surplus labor in rural areas and rising rural migrant wages in urban areas.…”