Before revision:  Lastly, we compute the price of anarchy  of this system, to understand the conditions under which large discrepancies between the MFE and socially optimal strategies arise, which is when  public policy would be most effective.
After revision:  Lastly, we compute the price of anarchy (PoA) of this system, to understand the conditions under which large discrepancies between the MFE and socially optimal strategies arise, which is when public policy would be most effective.