We utilize health care input and output data to evaluate how state-level efficiency in health care has changed in the wake of the Affordable Care Act (ACA). We use a Stochastic Frontier model to estimate annual measures of technical and cost efficiency before, and after, the implementation of...

Health care systems are under reform in many countries. This typically involves a shift towards more competition. But still, markets are highly regulated. This study analyzes competition and regulatory measures in four important fields using the modern tools of microeconomic theory and...

During the COVID-19 pandemic, governments globally had to impose severe contact restriction measures and social mobility limitations in order to limit the exposure of the population to COVID-19. These public health policy decisions were informed by statistical models for infection rates in...