I'm not sure most of the people that get caught up in the middle of a bubble can be described as irrational. It seems pretty rational to buy a house and flip it in the next few weeks at a profit when that's been happening for along time.
Paul SamuelsonThe failure of market catallactics in no way denies the following truth: given sufficient knowledge the optimal decisions can always be found by scanning over all the attainable states of the world and selecting the one which according to the postulated ethical welfare function is best. The solution 'exists'; the problem is how to 'find' it.
Paul SamuelsonCompanies are not charitable enterprises: They hire workers to make profits. In the United States, this logic still works. In Europe, it hardly does.
Paul Samuelson