Maternal employment and overweight children: does timing matter?
研究母亲就业时机对儿童超重的影响，发现儿童中期全职工作会增加16岁超重概率，而其他时期无显著影响。
Recent literature has shown consistent evidence of a positive relationship between maternal employment and children's overweight status. These studies largely use average weekly work hours over the child's life to measure employment. This paper specifically aims at exploring the importance of the timing of employment. Using various econometric techniques to control for observable and unobservable child and family characteristics, the results show that full-time maternal employment during mid-childhood positively affects the probability of being overweight at age 16. There is no evidence that part-time or full-time employment at earlier/later ages affects this probability.