My father is a trustee of one of the New York State Laborer's union funds, and he pointed out something about multiemployer funds that I hadn't known--they're uniquely vulnerable to the proposed excise tax on health plans that cost more than $8,000 for an individual, or $13,000 for a family.
I don't know what percentage of the population is covered by multiemployer plans, but it's significant; they're quite common in the construction and manufacturing sectors. They enable union workers, in particular, to shift between employers while keeping their benefits intact.
The way they work, at least in the construction unions, is that you earn benefits every hour you work. The interesting wrinkle is that--at least in some cases--you earn those benefits whether you're single or married. You're giving up the same portion of your wages as a young single man as you would if you were 45 and had six kids.
Say everyone in your MEP is paying $20,000 a year in foregone wages. The single guys will all get hit by the excise tax, while the married guys won't.
This is important if you expect the excise tax to "bend the curve", because in this case, there's not much incentive to try to control costs--at least, as long as you have enough single workers to drag your average down below $21,000 a year, where the family plan excise tax kicks in.