HLTH 3510 Week 1 Insurance Purpose Discussion Post Example

Week 1 Discussion: Initial Post

Why Pay Every Month for Care You May Never Use? Prepayment as a Bet on Uncertainty That Households Cannot Make Alone

The question for this week is why anyone hands over money every month for care they may never need. My answer is that prepayment exists because the size and timing of medical costs are uncertain for a household but fairly predictable for a large group, and insurance moves the uncertainty from the household to the group.

Consider my own household. In most years, our medical spending is small: a few office visits, a prescription, a dental cleaning. But in any year, one of us could need surgery, a hospital stay or cancer treatment costing more than our annual income. We cannot predict which year that will be. If we tried to save for it ourselves, we would need a fund large enough for the worst case, which we could never build. A group of thousands of households, by contrast, can predict fairly well how many of its members will have expensive years, even though it cannot predict which ones. By each paying a premium, the households turn an unpredictable, possibly ruinous cost into a predictable monthly one. This is the basic logic of risk pooling that our textbook describes as the foundation of health insurance (Shi & Singh, 2022).

Economists have long argued that medical care is unusual because of this uncertainty. In a classic paper, Arrow (1963) argued that the uncertainty about both illness and the effectiveness of treatment is central to why medical care markets look different from ordinary markets, and why insurance, along with institutions like professional licensing, develops around them.

Why pay even when healthy? Because the protection only works if healthy people pay in too. If people bought insurance only after they became sick, the group would contain only expensive members and premiums would rise until nobody could afford them. That problem, called adverse selection, is why most coverage is bought through employers or public programs that enroll people whether they are sick or healthy. Insurance also creates a second problem: once care is prepaid, people tend to use more of it than they would if each visit cost its full price, which economists call moral hazard (Pauly, 1968). Deductibles and copays exist partly to manage that.

My answer: we prepay not for the care we expect but for protection against the care we cannot predict. Do you think the monthly premium feels like a bill for care or a price for protection, and does that change how people use it?

Reply to Gabriela

Gabriela, you pointed out that many people do use their insurance every year, for prescriptions and checkups, so it does not feel like protection against rare events. That is a fair challenge to my framing. Modern plans mix two things: insurance against large, unpredictable costs and prepayment for small, predictable ones, such as preventive visits, which are covered partly because they may prevent bigger costs later. Our textbook notes that U.S. plans often cover routine care in ways that pure insurance would not (Shi & Singh, 2022). Maybe the confusion people feel about premiums comes from that mix.

Reply to Darnell

Darnell, you asked why young, healthy people should pay the same premium as older people who use more care. In employer plans, premiums are usually the same for all employees at a given coverage level, so younger workers do subsidize older ones in any given year. But they will be the older workers later. Arrow (1963) noted that insurance spreads risk across people; employer pooling also spreads it across stages of life. I think the fairness question you raise is real, though, and it is one reason some people choose high-deductible plans.

References

Arrow, K. J. (1963). Uncertainty and the welfare economics of medical care. The American Economic Review, 53(5), 941-973.

Pauly, M. V. (1968). The economics of moral hazard: Comment. The American Economic Review, 58(3), 531-537.

Shi, L., & Singh, D. A. (2022). Delivering health care in America: A systems approach (8th ed.). Jones & Bartlett Learning.