CBO analysts use the agency’s revised health insurance simulation model, HISIM2, to generate estimates of health insurance coverage and premiums for the population under age 65. The model is used in conjunction with other models to develop baseline budget projections (which incorporate the assumption that current law generally remains the same). It is also used to estimate the effects of proposed changes in policies that affect health insurance coverage.
This presentation provides an overview of the current model’s underlying data, calibration estimates, code segments, and the results highlighted in CBO’s recent report Federal Subsidies for Health Insurance Coverage for People Under Age 65: 2019 to 2029.