Peer effects: Does your perceptions about your peers matter more than your peers’ behavior?

It appears that not only does your friend’s behavior affect your behavior, but your perception of their behavior–independent from their actual behavior–affects your behavior. Want a concrete example of this? A paper by Amialchuk et al. (2019) finds the following: Using a nationally representative dataset, we estimate the effect of misperception about friends’ alcohol, smoking,…

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…