Description: When designing and pricing a healthcare product, it is not only important to know how to model frequency and severity, but it is essential to understand human behavior. Of course, the issue of anti-selection in medical insurance is well known as individuals know more about their health and prior expenditures than an insurer does. This type of behavior is certainly rational, and to be expected.

Description: Cost sharing reduction (CSR) payments are offered to low-income individual insurance buyers under the ACA. After October 2017, the difference in costs between the standard silver plan and CSR variants were defunded. To cover the costs of defunding, insurers have increased rates either through "broad loading" or "silver loading." States are approaching this adjustment differently, which is leading to some interesting differences between states. This article will review these differences.

Description: Presents a step-by-step methodology for calculating confidence intervals for IBNR estimates derived using the Averaqe PMPM method. It is a companion article to the January 2023 Health Watch article presenting the Average PMPM method for generating point estimates of IBNR with zero claims runout.