The Dragon Market was a Special Building that acted as an extra or producer (depending on what the player chose) with the help the player's in-game friends. The Dragon Market costed 1000 and yielded 1000 upon the completion of its construction, and had a size of 4x4 grid area. It was removed in August 20, 2019 for several reasons; click here to view the full community forum post.
Functions
The Dragon Market allowed you to select either or to be produced and collected in 12 hours, whether or not your friends accepted your request for assistance.
Each assist from your neighbours increase the resource collected depending on several variables, including your game level.
The Post-LaW update to Dragon Market appears to have removed the cap for resource collection from it. With many active neighbours, you may find it worthwhile to collect resources from it on PC.
Starting 28/5/2014, you can collect from the Dragon Market every 6 hours, instead of every 12.
Formula
There was a production bonus when at least one of a player's friends accepted their request and a further bonus when 10 friends accept their request.
Friend Bonus :