Who argued that the economy should be left to itself to close a recessionary gap?

In the short run, a perfectly competitive firm will shut down if

A) it incurs any economic loss. B) price equals average cost. C) total revenue is less than total variable cost. D) total revenue is less than total fixed cost.

Why does a collusive agreement to restrict output and raise price create a game like the prisoners' dilemma?

What will be an ideal response?