Narrow hospital networks have proliferated in health systems with managed care. We investigate the causal effect of network breadth on mortality leveraging the termination of the largest health insurer in Colombia. The termination caused a substantial increase in mortality accompanied by...

Improving global health outcomes amidst fiscal constraints, climate crises, and pandemics is a formidable challenge for governments worldwide. The recently published WHO/World Bank 2023 UHC Global Monitoring Report underscores a concerning reality: despite the goal of universal health coverage...

Over the last two decades, employers have increasingly offered workers a choice of health plans. The availability of choice has the potentially beneficial effects of lowering the cost and increasing the quality of health care through greater competition among health plans for enrollees as well...