Trends in provider consolidation

A policy paper by the HHS describing proposals to promote choice and competition in health care. Before getting into policy recommendations, however, it outlines how increased provider consolidation has lead to less choice. One recent study by Gaynor et al. …found that the mean HHI [Herfindahl-Hirschman Index] across MSAs in the inpatient hospital industry increased…

How to choose a Bayesian prior

Bayesian analysis is increasingly common in health economic research.  To apply Bayesian models, however, you need to select a prior distribution.  How do you select your prior?  Andrew Gelman (of the excellent Statistical Modeling, Causal Inference, and Social Science blog) provides some advice on selecting a prior on the stan-dev GitHub website.  I review some…