I think culture of ownership sounds way better than gridlock economy.
Good thing Molly owns that phrase.
Molly - this dude beat you to a book on ownership induced gridlock!
In a nutshell, when too many people own pieces of one thing, no one can use it. Usually, private ownership creates wealth, but too much ownership has the opposite effect; it creates gridlock. That's a free market paradox. It's blocking innovation at the frontiers of our economy.
So, I propose this guy get interviewed for BOL or Cultureofownership.org
He's pretty vague about what to do about the problem though...