Arbitrage(套利) Arbitrage is trading for profit in commodities which are not used for consumption. E.g. buying and selling stockS, bonds, or stamps No uncertainty all profit opportunities will be found. What does this imply for prices over time?Arbitrage (套利) Arbitrage is trading for profit in commodities which are not used for consumption. E.g. buying and selling stocks, bonds, or stamps. No uncertainty  all profit opportunities will be found. What does this imply for prices over time?