The first one can be found by searching the title in Google Scholar. The second one can be found the same way but the Harvard PDF link in GS is currently broken; I re-searched the title in regular Google, which led me to another Harvard page with a fresh PDF download link.
National Health Spending In 2011: Overall Growth Remains Low, But Some Payers And Services Show Signs Of Acceleration
If Slow Rate Of Health Care Spending Growth Persists, Projections May Be Off By $770 Billion
http://www.econ.wayne.edu/agoodman/5550/week1/HE_2011.pdf
http://scholar.harvard.edu/files/cutler/files/health_aff-2013-cutler-841-50.pdf
The first one can be found by searching the title in Google Scholar. The second one can be found the same way but the Harvard PDF link in GS is currently broken; I re-searched the title in regular Google, which led me to another Harvard page with a fresh PDF download link.
Sorry for not finding them myself; that is embarrassingly easy.
You’re hardly the first. :)