This Impact Evaluation (IE) has two main objectives: (i) measuring the impact of RBF on health outcomes and (ii) understanding the factors driving this impact. We hypothesize that RBF will improve two health outcomes related to maternal health: (i) quality of maternal care and (ii) equity of maternal care utilization. Moreover, the survey intends to explore three additional issues: the relation betwen RBF and (i) health workers' motivation it is expected that RBF will increase job satisfaction of health workers: (ii) corruption health workers (HWs) will have an incentive to reduce the time they spend on "survival strategies" or corrupt behaviors: (iii) health care seeking behaviors although RBF is mostly targeting maternal health, it could have also an impact on indicators of other health care services, and more broadly on health care seeking behaviors.