The number of Chinese children living in poverty has risen steadily in Hong Kong, China. However, little is known on the longitudinal effects of family socioeconomic status (SES) on cognitive-linguistic skills, word reading and writing in children from low-SES backgrounds. This study examines differences in cognitive-linguistic skills and word reading and writing across kindergarteners from the low- and middle-SES groups. It also investigates the direct link between SES and children's concurrent Chinese literacy skills and how cognitive-linguistic skills mediate the longitudinal associations between SES and word reading and writing. One hundred and nine children were assessed at Kindergarten K2 (Time 1) and reassessed at Kindergarten K3 (Time 2). Children were administered the measures of vocabulary knowledge, phonological awareness, morphological awareness, executive functioning, Chinese word reading, and Chinese word dictation at both time points. Results revealed that low-SES children performed less well on Chinese word reading and dictation than their middle-SES peers at both time points. Moreover, hierarchical regression and mediation analyses suggested that SES had a direct relation with Chinese word reading at Time 1 after controlling for age and cognitive-linguistic skills, and an indirect link with Chinese word dictation at Time 2 which was fully mediated by phonological awareness and vocabulary knowledge at Time 1. The results highlight that SES may exert an impact on children's early Chinese reading and writing and suggest the benefit of improving phonological awareness and vocabulary knowledge of low-SES children. Copyright ©Springer Netherlands.

The Great Gatsby curve shows societies with higher levels of economic inequality to exhibit lower levels of intergenerational mobility, with such mobility influenced by educational opportunities. Hong Kong features one of the world’s largest degrees of economic inequality, but has also witnessed a substantial expansion in tertiary education in the past two decades. This paper investigates the change in intergenerational earnings mobility and returns to education in Hong Kong over time. Data were drawn from the 1996, 2006 and 2016 Hong Kong Population By-Censuses. Instrumental variables regression was performed to estimate the change in the average level of such mobility, and instrumental variables quantile regression to estimate the change in the non-linear pattern of intergenerational mobility and returns to education. The findings show the average level of intergenerational mobility has been improved, with intergenerational elasticity decreasing from 0.37 in 1996 to 0.26 in 2006 and 0.23 in 2016. However, intergenerational economic transmission among high-earners remains persistently strong. Examination of the non-linear pattern shows that it is the reproduction of wealth rather than the reproduction of poverty that has led to intergenerational persistence in Hong Kong. A similar pattern was observed in 1996, 2006 and 2016. Returns to non-degree tertiary education were similar across the earnings distribution in 1996 and 2016 but more valuable for low-earners in 2006. Degree-level tertiary education is persistently more valuable for high- than low-earners, which exacerbated earnings inequality in 1996, 2006 and 2016.
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http://dx.doi.org/10.1007/s11205-018-1968-2]