Economics and Abundance

DavidMasterson writes "Being relatively new to the issues of nanotechnology, I have no story to offer, but I would like to see a greater discussion of the economics associated with a world of abundance that (supposedly) nanotechnology (and related technologies) will provide. In particular, I wonder what all the billions of people on Earth will do to "make a living" when their needs are taken care of through nanotechnology. It's obvious that there will be a small number of people who will be able to "profit" (for lack of a better word) from the development of nanotechnology, but what about the millions (or billions) of other people whose jobs will be displaced by nanotechnology? Where will these people make their living?"