The Impact of Positive and Negative Income Changes on the Height and Weight of Young Children
利用厄瓜多尔无条件现金转移支付资格标准变化，发现失去转移支付两年后幼儿体重更轻、身高更矮、更易发育迟缓，而获得转移支付无显著影响，机制是家庭食品支出减少。
We estimate the impact of changes in unearned income on the height and weight of young children in a developing country. As a source of income variation we use a change in the eligibility criteria for receipt of an unconditional cash transfer in Ecuador. Two years after families lost the transfer, which they had received for seven years, their young children weigh less and are shorter and more likely to be stunted than young children in families that kept the cash transfer. We find no statistically significant effect on young children's height and weight two years after gaining the cash transfer. Information on household expenditures suggests that a reduction of food expenditures by households that lost the transfer is the main mechanism behind this finding.