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• Home-visiting interventions have positive effects on child cognitive development, parenting beliefs and parenting practices of caregivers in rural China. • Home-visiting interventions have null effects on child social-emotional development in rural China. • Three mechanisms are identified through which interventions are able to raise child cognitive development. • Shifting parenting beliefs; increasing parenting practices; and shifting parenting beliefs thus fostering better parenting practices of primary caregivers are the three mechanisms that are driving our overall results of the impact of home-visiting interventions on early child development. To better understand the impacts of parenting interventions (e.g., parental training of psychosocial stimulating activities) on child developmental outcomes and design effective policies to benefit young children, it is essential to identify the mechanisms through which the interventions work. To this end, this paper presents the results of two randomized controlled trials that offered home visitation, parenting trainings to 435 households (with 527 households as the control group) in 174 villages across three provinces in China. The findings from the randomized controlled trials showed that the interventions significantly improved child cognitive development and had a positive effect on the primary caregivers' parenting practices and their parenting beliefs. The analysis suggests three possible mechanisms through which the parenting interventions affected child cognitive development: changing the parenting beliefs of the primary caregivers, shifting the parenting practices of the primary caregivers, and improving the primary caregivers' parenting beliefs, thus fostering better parenting practices. [ABSTRACT FROM AUTHOR]

• We use five-wave panel datasets to examine the effects of maternal migration on children's cognition. • The cognition developments were measured by BSID-I and WPPSI-VI. • Maternal migration has negative effects on the cognition of preschool-aged children. • Possible mechanisms include a generational shift in parenting and feeding practices. Preschool-aged children account for over 38 per cent of those left behind. Previous research suggests that maternal migration during early childhood may create a greater negative impact, however, the literature on the effect of maternal migration on cognitive development of preschool aged children is rare. This study uses a unique panel dataset following children from infancy to 63 months and their caregivers to estimate the causal effects of maternal migration on the critical cognitive development of children left behind. We find that maternal migration increases the probability of cognitive delay by six percentage points. Possible mechanisms include a generational shift in parenting and feeding practices leading to reduced engagement in stimulating activities and dietary diversity. To the best of our knowledge, this is the first study to examine the causal effects of maternal migration on cognition during the first six years of life in rural China. [ABSTRACT FROM AUTHOR]