Employer-sponsored coverage is the most common form of health insurance in the United States, covering more than 149 million non-elderly people. Benefits experts say defined contribution plans make up a relatively small slice of that total, but the trend is expected to grow, especially with big companies.
A total of 29 percent of firms with 5,000 or more employees surveyed earlier this year by the nonprofit Kaiser Family Foundation said they are considering offering benefits through a private exchange. In contrast, only 7 percent of companies with 200 to 999 workers are considering it.
Private exchanges are being considered more in the retail and manufacturing industries, according to Kaiser, which studies health care issues and does not run an exchange.