United Health Group Pulling Out of Affordable Care Act by WhartonKnows published on 2016-04-21T15:41:44Z The nation's largest health insurer, United Health Group, says it is pulling out of most of the Affordable Care Act insurance exchanges around the country. We look at what this means with Wharton Health Care Management Department professor Robert Town and the Robert Wood Johnson Foundation's Katherine Hempstead. On this edition of “Knowledge In 5,” Wharton's Peter Fader and Denise Dahlhoff join us to discuss the state of online retail. Sales are continuing to go up, but are they slowly flattening out? We discuss the numbers from 2015’s third quarter results. The Knowledge@Wharton show airs 10a.m.-12p.m. EST Monday-Friday on Wharton Business Radio SiriusXM channel 111 with replays at 10p.m. EST. Genre Business