This video is six months old, which is ages World of Warcraft’s RMT (Real Money Transactions) economy, but it still contains a lot of great information on the game market economics. For those of you not familiar with WoW, it is the largest massively multiplayer online role-playing game in the world with over 12 million subscriptions each month. There is a large market system built up around the in-game economy (gold) with brokers, farmers (gold producers), and customers who pay real money for in-game currency.
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