Economic Effects of Migration on the Left-Behind in Cambodia
使用倾向得分匹配法，研究移民对柬埔寨留守家庭福祉的影响，发现移民使贫困率降低3-7个百分点，但留守成员工作时间减少5-10%。
Using propensity score matching, this study examines the effects of migration on various indicators of household wellbeing in Cambodia. The results indicate that migration would reduce poverty headcount rate by 3–7 percentage points and decrease the depth of poverty. Migration is also found to reduce by 5–10 per cent the hours worked by members left-behind. The impact of migration on labour participation may be, however, vulnerable to unobservable factors. Nevertheless, the study suggests that important heterogeneous effects which differ from the average impact exist. The analysis is conducted separately by internal and international migration.