It wouldn�t really work because such a society would transpire where some people would sit around doing nothing and getting everything for free, whilst others worked their bottoms off to provide free things to them. Not only would the workers get fed up and demand something in return, you will also have a lack of supply to match the demand because of those doing nothing. In the event of this, a bidding war would start where survival of the species was the key and you might have aggressors controlling supplies through malice. After all, if everything was free, why would anyone work to provide anything? If you consider that all things are a trade-off then that, in effect, makes it a commodity of �value� and therefore something that requires payment in some form or other. Eventually you will find a useless band of people (probably lawyers) who can�t really provide anything of worth but will still want something in return anyway.