Evaluation
Researchers partnered with Opportunity International Savings and Loans Limited (OISL) to conduct a randomized evaluation to test the impact of high-frequency interactive voice response (IVR) calls on people’s use of mobile banking services and their financial behaviors in Ghana. People who received the IVR calls were more likely to use mobile banking and make on-time loan repayments, increasing their access to subsequent loans; however, they were not more likely to save.