US pharmaceutical company R&D spending is ~80B per year [0]. Healthcare spending is ~3.6T, making pharma R&D about 2% of overall healthcare spending. Based on

US pharmaceutical company R&D spending is ~80B per year [0]. Healthcare spending is ~3.6T, making pharma R&D about 2% of overall healthcare spending. Based on the above back-of-the-napkin math, I'm inclined to think pharma R&D isn't really the main factor. What is your support for believing it is the case? [0] https://www.biopharmadive.com/news/phrma-research-development-spending-industry-report/529943/ https://www.biopharmadive.com/news/phrma-research-developmen...