In economics and finance, arbitrage (US /ˈɑrbɨtrɑːʒ/, UK /ˈɑrbɨtrɪdʒ/, UK /ˌɑrbɨtrˈɑːʒ/) is the practice of taking advantage of a price difference between two or more markets: striking a combination of matching deals that capitalize upon the imbalance, the profit being the difference between the market prices.