Although there is no accompanying paper, I thought it might be useful to post the PowerPoint slides that I have used in several recent talks about the US since there is an enormous interest in a relatively concise summary of the features of the ACA.
Since my area of particular interest is risk adjustment, there are a number of slides on that topic.
Since Massachusetts is an important early demonstration, I included three slides on Massachusetts.
There are three versions posted: the PowerPoint slides, a pdf version, and a pdf version as a handout (four slides per page).
Powerpoint pdf Handout