Economic Definition of arbitrage. Defined.
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Term arbitrage Definition: Buying something in one market then immediately (or as soon as possible) selling it in another market for (hopefully) a higher price. Arbitrage is a common practice in financial markets. For example, an aspiring financial tycoon might buy a million dollars worth of Japanese yen in the Tokyo foreign exchange market then resell it immediately in the New York foreign exchange market for more than a million dollars. Arbitrage of this sort does two things. First, it often makes arbitragers wealthy. Second, it reduces or eliminates price differences that exist between two markets for the same good.