The many drivers of healthcare premiums
What is really driving increasing healthcare costs? Several causal factors contribute to the overall cost of health insurance:
There are many specific reasons why premium rates change year to year. These reasons can be grouped generally into five major categories:
1. Premium True-up: Correction (upward or downward) needed to current premium rates in order to align new rates with actual claims and other revenue needs
2. Benefit Cost Trend: Incorporation of changes to reflect the cost of the benefits in the future
a. Unit Cost Trend (provider payment rate changes)
i. Medical Inflation (price changes for a fixed market basket of medical services)
ii. Net Impact of Provider Contracts (difference between change in provider payment rates and medical inflation)
b. Utilization Trend (change in number of services used)
c. Mix/Intensity of Services Trend (change in composition of services used by consumers)
d. Cost-sharing Leverage (change in impact over time of fixed dollar copays and deductibles on benefit costs)
3. Member Changes: Recognition of changes in the characteristics of members covered in the future period to which the new premium rates apply (e.g., age and gender mix), compared with those members covered currently (types of changes for which there is no differentiation in the premium rates themselves)
4. Plan Changes: Reflection of the impact of changes in benefit design or provisions
5. Insurer/Administrator Retention Changes: Inclusion of needed or desired adjustment to the insurer retention component of premium rates (principally health plan administrative costs, taxes, and profits)
There may be other causes or components that can be identified, but these five categories capture the primary reasons for premium rate changes. Within these five categories, the first and second (premium true-up and benefit cost trend) are typically the primary drivers of year-to-year premium rate increases. As a component of benefit cost trend, medical inflation is usually one of the most important contributors. However, it is not the only component of benefit cost trend, and benefit cost trend is but one of the five major causes of premium rate increases.
This list was excerpted from the recent paper by Jon Shreve, “The difficulty of legislating premium rate increases.”
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