Argument: Co-ops would compete with and improve private health insurance
Matthew Iglesias. "Health Care Co-ops". Think Progress. July 10, 2009: "Q: How could a co-op offer a better alternative? [...] A: Co-ops presumably would reduce or eliminate some costs, including profits, to compete effectively with private insurers. [...] Q: Would that drive insurance companies out of business? [...] A: Unclear. Proponents say co-ops would force private insurers to be more efficient and fair."