The act of buying and selling goods simultaneously in different markets to gain an immediate profit. Impressive, but tricky.Arbitrage is when an asset (stocks, currencies, etc.) is bought in one market and sold in another for a higher price. The simultaneous purchase and sale of the same securities, commodities, or foreign exchange in different markets to profit from unequal prices. Arbitrage is the simultaneous purchase and sale of the same asset in different markets in order to profit from a difference in its price. Wiley also publishes its books in a variety of electronic formats. Some content that appears in print may not be available in electronic books. Then arbitrage ensures that in equilibrium all firms have the same market value.