1. Income and Health Spending: Evidence from Oil Price Shocks;Acemoglu;Review of Economics and Statistics,2013
2. Centers for Medicare and Medicaid Services 2015a Medicare Current Beneficiary Survey (MCBS) https://www.cms.gov/Research-Statistics-Data-and-Systems/Research/MCBS/index.html?redirect=/mcbs
3. Centers for Medicare and Medicaid Services 2015b MSIS Medicaid Statistical Information System http://www.medicaid.gov/Medicaid-CHIP-Program-Information/By-Topics/Data-and-Systems/MSIS/Medicaid-Statistical-Information-System.html