This research paper sets out a theoretical model with regulated
prices which specifies conditions on demand and cost functions which
determine whether a hospital will have higher quality when its rivals
have higher quality. Findings show that a hospital’s quality is
positively associated with the quality of its rivals for seven out of
the sixteen quality measures and that in no case is there a negative
association. Also, in those cases where there is a positive association,
an increase in rivals’ quality by 10% increases a hospital’s quality by
1.7% to 2.9%.