Showing posts with label rational choice. Show all posts
Showing posts with label rational choice. Show all posts

Sunday, November 02, 2014

Rational choice in the ACA marketplace

Here's another piece of the puzzle in my quest to figure out why ACA private plan buyers bought low-premium, high-deductible bronze plans in much higher proportions in some states than in others (8% of Mississippi plan buyers selected bronze; 41% of Hawaiian shoppers did). A good predictor is each state's public health profile. (Thanks to Brad G. for putting me on the trail.)

Bronze plans, in which deductibles average over $5,000 per person, are bad deals for people who are likely to make heavy use of medical services. They're also bad deals for low-income buyers, who can access generous Cost Sharing Reduction subsidies that reduce deductibles and co-pays (radically for those with incomes under 200% of the Federal Poverty Level) -- but only if the buyer chooses a silver plan. Low income buyers are often in poor health, and know it. Most ACA buyers have been uninsured and so may have pent-up healthcare needs.

I have previously noted that a very high percentage of buyers eligible for CSR did in fact choose silver plans, and that lower income states did have lower percentages of bronze buyers -- though there are notable exceptions up and down the scale. The same is true for measures of public health in each state. Wealthier states tend to have healthier residents -- though wealth disparities within states can complicate the picture.

In the chart below, I have tabulated three public health measures drawn from the Kaiser Family Foundation's State Health Facts: life expectancy, incidence of  Diabetes, and obesity -- for the ten states with the lowest and highest takeup of bronze plans. The average bronze takeup states in the former group is 14.25% of all plan buyers, and in the latter group, 31.1%.  In all three health measures, the low-bronze-takeup states as a group significantly underperform the high-bronze-takeup group. The income disparity between the two groups is also stark.*