By MERRILL GOOZNER

There is a dangerous but beguiling econometric logic behind the idea that turning Medicare over to the insurance industry will lower health care costs. It’s an idea that could catch on if the general public became convinced that there is nothing we can do acting together as a society to lower the cost of care. Only the market can do it, the Republicans claim. Force seniors (or the poor or anyone, for that matter) to have more skin in the game, and they’ll use their clout as consumers to separate the wheat from chaff in modern medicine. Expensive, wasteful tests, procedures, and drugs will wither for lack of customers.

Democrats, in attacking the Republican plan that passed the House yesterday, relentlessly hammered away at the cost to future seniors of having “more skin in the game.” Two-thirds of the cost of care within a decade of Medicare privatization in 2023 will fall on them. But the 2030s must seem very far away to people in their 40s and 50s. Isn’t it likely that they won’t think about that far-off time, but instead grab on to the promise of future lower costs, which, let’s be frank, the Affordable Care Act (health care reform) may not be able to achieve.

So here’s the real argument young and middle-aged people need to hear, and the real reason why the “more skin in the game” argument can never work for seniors or other vulnerable populations, including them when they reach that age. Seniors and the poor account for over half of health care spending. Within those groups, 5 percent of the population accounts for 50 percent of health care costs; and 20 percent of the population accounts for about 80 percent. These costs come for the most part at times when economic incentives have no influence at all on medical decision-making: in medical crises; in treating chronic conditions; and, for most Medicare patients, in the last six months of life.

That’s why a voucher program for Medicare, which will shift an increasing share of those inevitable costs onto the elderly themselves, can fairly be categorized as a 100 percent estate tax or death tax. People under 55 need to know that if the plan crafted by Rep. Paul Ryan were passed, most of them will never have a cent to leave to their children. It will all go to the health care industry to support the American way of dying.

Merrill Goozner has been writing about economics and health care for many years. The former chief economics correspondent for the Chicago Tribune, Merrill has written for a long list of publications including the New York Times, Financial Times, The American Prospect and The Washington Post. You can read more pieces by Merrill at  GoozNews, where this post first appeared.