Arbitrage is the simultaneous purchase and sale of the same asset in different markets in order to profit from a difference in its price. Rental arbitrage is an expert technique where you sublease a property for the sole purpose of Airbnb.Arbitrage is a financial term that means taking advantage of different prices for the same assets in different markets. Airbnb arbitrage usually means renting a home and then re-renting it on Airbnb. Rental arbitrage is a business model where an individual or entity rents a property longterm and then rerents or sublets that property on a shortterm basis. Arbitrage is the strategy of taking advantage of price differences in different markets for the same asset. Airbnb rental arbitrage is the act of renting a property longterm and then rerenting it shortterm on vacation rental sites like Airbnb or Vrbo.