Knowledge
The Knowledge age emerged from the integration of tools developed during the information age. The Internet vastly accelerated the amount of information available from which knowledge could be applied as factors of production in physical systems from weather prediction, space travel, medicine, and new ways for people to organize their selves.
Innovation
The innovation age will emerge from the integration of tools developed by the knowledge age. So called “social media” is creating thousands of platforms upon which people reorganize themselves around interests, affinities, relationship, and commerce. As these tools integrate; that is, when the output of one tool becomes the input of another tool (and vice versa), a new economic paradigm will emerge.
Wisdom
Keep in mind that the agrarian economy and all previous stages are still with us today. Keep in mind that elements of future economies also exist today. Keep in mind that the US dollar has not always been the currency of trade nor should we expect that it will always be with us in the future. We can assume that the productivity inherent in people and communities is not dependent on the currency, rather, currency is dependent on it. Time is the only scarce resource and everyone has an equal amount of it. As such, time is the only true currency.