A corporation can live forever as opposed to any individual, and can also be dissolved. In case of a limited corporation, it does not have to pay its debt.
A state is obviously also immortal, has monopoly on violence, and can impose taxes. The violence part seems contrary to free as in free market. Can a state be regarded as a form of corporation, or is it some other kind of animal entirely?
yes modern states are registered corporations. you can look them up on http://www.dnb.com/
Indeed, a corporation that claims a regional monopoly on the industries of security and justice. And proceeds to provide the same "great" service one would expect from a monopoly.
and if you don't like it than you can... contact hr