The post’s authors, Ross Koppel and Steve Soumerai, write ACO’s face limitations in their studies which produce bias geared toward apparent savings.
Below is an excerpt from their post, detailing two major methodological flaws:
- “ACOs generally volunteer to participate based on their pre-existing capacity to ‘manage’ care. These organizations are then compared to non-volunteer organizations that are less likely to game the system and are destined to perform worse than volunteers.”
- “These studies fail to incorporate the costs of forming and maintaining ACOs. These creation and maintenance costs alone would alter the calculations and may sink them.”
“It is no wonder the majority of Pioneer ACOs have dropped out of the program,” Koppel and Soumerai write. “It seems clear they were not saving money.”