Wealth is 1 of 3 resouces in Empire Earth 3. Wealth is generated by building a market and establishing trade routes. Once a market has been built, the Player’s first trade cart will appear and establish a trade route with the Player’s nearest City Center. Wealth is generated by each trade cart when it reaches its destination, either a City Center or Dock, and when it returns to its origin market. The amount of wealth that is generated is determined by the straight-line distance between the trade cart’s origin and its destination. The further away, the more wealth that is generated, but increased distance also exposes the trade cart to possible attack.
Markets, like Warehouses, have slots that can be purchased. Each slot represents a trade cart, which spawns a short time after the slot is purchased. Trade carts move along their routes automatically once a route is set up. You can change the destination of a route by selecting the market or the trade cart and right-clicking a new destination. In addition to Markets, each Dock is allowed one trade route with another dock via a trade ship. You can establish trade routes with other players if you first research the “Foreign Trade” technology.