A tool exists for determining the current worth of a stream of payments expected to continue indefinitely. This calculation assesses what a perpetually generating income is worth today, given a specific discount rate. For example, it can determine the value of an investment that promises to pay a fixed amount each year, perpetually, considering prevailing interest rates.
This valuation method offers significant utility in various financial contexts. It is used to assess the intrinsic value of certain investments, particularly those that provide ongoing cash flow. Furthermore, it provides a framework for analyzing long-term investments and philanthropic endowments, offering insight into their financial sustainability and impact. Its origins lie in the need to accurately assess the value of assets generating income without a foreseeable end date.