Metropolis is a lot more than just a trading application, and what might seem like a basic analysis to an arbitrageur may be a completely novel strategy at an accounting firm.
The arbitrage scheme exploits that system using the basic buy low, sell high principle: A Web site arbitrageur uses a low-priced keyword to lure traffic and then redirects that traffic to another site that contains little content and is stacked with ads that earn a much higher price.