I guess, as is, there are sufficient incentives against this, as pointed out by the linked comment. Generally speaking, when the economic pressure increases, the pressure to cooperate may increase, as well. Which may turn out both ways. (Meaning: I really don't know, and I'm not sure anyone may know for sure. Sorry for the Socratic anticlimax.) Said paper suggests that there are incentives for colluding against the system while protecting it at the same time.