Conditional cash transfers, spillovers, and informal health care: Evidence from Peru
利用秘鲁农村家庭调查和断点回归设计，发现有条件现金转移不仅减少了目标成员使用低质量非正规医疗，还通过家庭内溢出效应减少了非目标成员的使用，信息改善是潜在机制。
Conditional cash transfer programs have become instrumental in encouraging the use of formal health services in developing countries, but little is known about their effect on the use of low-quality informal care. Using a large survey of Peruvian rural households and a regression discontinuity design, we find a sizeable reduction in the use of informal health care providers not only by targeted but also by nontargeted members of households that qualify for the program. This indicates the existence of spillover effects within the household. We also provide evidence that beyond the direct increase in income, the availability of better information about institutional services is a potential mechanism that drives these effects.