Sources at retail outlets have provided details to MCV regarding how the used game ecosystem will function on the Xbox One. Since games will be linked to a users Xbox Live account, many people have been wondering exactly how you'll be able to sell, trade or buy used games from retailers.
According to MCV's source, Xbox One games can only be sold to retailers authorized by Microsoft, who have agreed to their terms regarding used games, and have integrated with Microsoft's pre-owned game system.
Once a game has been entered into the system by the store, your record of ownership is wiped from your Xbox Live account, and it can then be re-purchased by someone else. This would explain why Xbox One needs to connect to the internet at least once every 24 hours, to ensure that you still own the games that are installed on your system.
Retailers will be free to charge whatever they wish for used titles, however a percentage will go to both Microsoft and the game's publisher, while the retailer is free to keep the remainder of the sale amount.
This however seems to contradict previous reports that activating a used game would incur a fee equal to the full retail price of the title, so we should take it as a rumor until Microsoft officially provides more details.