HCCI's work on the growth in private health insurance spending was recently cited in an article by Health Affairs.
From the article: "The supremacy of price is also supported by the work of the Health Care Cost Institute (HCCI), which found that between 2014 and 2018, US private insurer health spending per person increased by 18.4 percent, while per person use increased by only 3.1 percent. In contrast, there was a 15 percent average increase in prices for drugs, professional services, and hospital care."