In a new blog post, Sabrina Corlette of Georgetown University and Sarah Dash of the Alliance for Health Reform review the findings of their Commonwealth Fund brief assessing how state-based health insurance marketplaces are implementing the Affordable Care Act’s quality improvement initiatives. They found 13 marketplaces moved forward this year with at least one of the ACA's quality-related provisions, such as collecting performance data or making such information public. Still, the authors say, these efforts may not have much impact if consumers can't compare and choose plans based on quality or if marketplaces include only the highest-quality plans.