A Resorce Limited Economy - fear

I have written before, and it is undeniable that we live in a finite world. We cannot use more resources than we have. That's a fact, not an opinion.

Given that limit, we have the choice to co-operate and conserve, or compete and deplete. I think the big problem is that if we don't know that we've got enough resources to share, the logical position is to get what one can for oneself - ie compete. Yes, there will be those who trust enough to share / co-operate on the grounds that it is fair, but there will be others, starting from a fear of scarcity, who will seek to reserve / own / hoard what they think they need plus a buffer or store against shortages.