Under this 'definition' of sharing, the only requirement seems to be for the goods transferred to be in a 'closed' system. If someone were ever to create a serv

Under this 'definition' of sharing, the only requirement seems to be for the goods transferred to be in a 'closed' system. If someone were ever to create a service that traded 'ride credits' with 'food credits', would it no longer be a sharing model? Couldn't we frame the entire world economy, based off of currency as a 'sharing model'? While I do think sharing models require some kind of 'inclusiveness' to make them viable, I think we must take into account the distribution of goods/resources, and the power relationships that evolve from providing these services. The only way (or at least the only way I can think of off the top of my head) to keep these in check is to allow everyone participating in the system to have a say in how the system operates. Something akin to a co-operative rather than a shareholder driven corporation.