internal rate of return - IRR: The rate of return on an asset investment. It is the discount rate that equates the present value of future net revenue streams (over the economic life of the asset) to the cost of the investment.

• 内部收益率(简写为IRR):指资产投资的收益率。它是使未来净收入总额(在资产的经济寿命期内)的现值等于投资成本的贴现率。亦见economic rate of return; financial rate of return