This analysis used a placebo difference-in-differences model as if the ACA had been implemented in 2013, 25 and it compared study outcomes between the two groups in the 2011–12 versus the 2012 ...

In a difference-in-differences analysis of Medicare fee-for-service claims, we compared Medicare spending for beneficiaries attributed to Pioneer ACOs (ACO group) with other beneficiaries (control ...

Objective To examine whether the introduction of payment by results (a fixed tariff case mix based payment system) was associated with changes in key outcome variables measuring volume, cost, and ...

Patient care experiences worsened after private equity firms took over hospitals, according to a difference-in-differences analysis. From 2008 to 2019, the percentage of patients rating hospitals ...