Two questions have run through this series without a clean answer.
The first appeared in Edition 1: what happens when you leave your job? The employer-based system was built for a world where people stayed at companies for life. Nobody asked what happened when they didn’t.
The second appeared in Edition 5: what happens when costs have no ceiling? Medicare passed with no price controls — physicians and insurers set their own fees, and the federal government paid whatever was charged.
By the 1990s, both questions were arriving as lived reality for millions of Americans.
As healthcare costs rose through the 1980s and 1990s — driven partly by uncapped Medicare incentives, partly by the tax exclusion that rewarded ever-richer benefit packages — employer insurance became more valuable. And more dangerous to lose.
Each stakeholder was responding rationally to their own incentives.
Insurers, operating in a market where pre-existing conditions could be excluded, charged more for individual coverage and less for group plans. The math heavily favored staying with an employer.
Employers, benefiting from the tax exclusion, offered richer plans to attract talent. The more generous the plan, the harder it was to leave.
Patients faced a calculation that had nothing to do with job satisfaction or productivity. Before the Affordable Care Act, roughly 27% of non-elderly adults had a condition that would likely cause them to be turned down for individual coverage. For those people, leaving an employer wasn’t inconvenient. It was a genuine financial risk.
So, workers with employer-sponsored insurance were 25% less likely to voluntarily change jobs. They stayed on the job 16% longer and were 60% less likely to leave voluntarily. “Job lock” showed up three ways.
Workers stayed in jobs they disliked because switching employers meant losing coverage or facing exclusions for pre-existing conditions. Entrepreneurs didn’t start companies. Imagine you are a software engineer with a diabetic child or a designer whose spouse had MS — the individual insurance market was expensive, unreliable, and hostile to anyone with a medical history.
Finally, workers delayed retirement. Too young for Medicare at 62 or 63, they kept working because three years without coverage could wipe out a lifetime of savings.
A Gallup study found one in six American workers with employer-based insurance staying in jobs they wanted to leave, purely out of fear of losing coverage. The effect was strongest among lower-income workers — the people with the least ability to absorb the risk.
This takes us right back to the Victor Fuchs quote I keep coming back to:“Part of the problem is that we have not decided what we want our healthcare system to do.”
Job lock is a precise illustration of what that means. The system was never asked to preserve labor mobility. It was never asked to encourage entrepreneurship, or allow early retirement, or enable career changes. It was asked to cover employees — and it did that. Everything else was a side effect nobody counted.
The productivity lost to mismatched workers, the companies never started, the innovations never pursued — none of it showed up in a healthcare spending report. It was the cost of a system built for one era, running in a different one.



