I'm not exactly sure why but I would think it has to do with NJ's tough state mandates. Which are law. I work for an insurance carrier, there are a handful of states we do not even try to do business in because state mandates are so high it's cost prohibitive to offer a plan like ours. NJ is top of the list. Along with NY, WA, OR, and MA. Start to see a pattern there?
You want cheaper insurance? Lift the federal and state regulations to allow fair competition. You'll see premiums drop. Fast.
It's my suspicion that Christie doesn't care ~ he always found his own medical insurance plan difficult to deal with so he's not about to get involved in this one ~ just give him another 1.5% and he's happy.
Federales already pay 28% ~ which is more than 4 times what any of the NJ state people pay personally.