在经济学和金融学中，“贴现率”一词可能意味着两件事之一，取决于具体情况。一方面，它是代理商在多期模型中折扣偏好中的未来事件的利率，这可以与短语折扣因子形成对比。另一方面，它意味着美国银行可以从美联储借款的比率。就本文而言，我们将重点关注适用于现值的贴现率 – 在商业利益的离散时间模型中，代理人将未来折扣b倍，人们发现利率等于一个减去b的差除以b，可以写成r =（1-b）/ b。该折现率对于计算公司的贴现现金流量至关重要，该贴现率用于确定未来一系列现金流量在今天的总额中是多少。在实际应用中，贴现率可以成为投资者确定未来预期现金流量的某些业务和投资的潜在价值的有用工具。为了确定未来现金流的当前价值，这实际上是将贴现率应用于商业活动的点，首先必须评估货币的时间价值和不确定性风险，其中较低的贴现率意味着较低的不确定性较高未来现金流量的现值
In economics and finance, the term “discount rate” may mean one of two things, depending on the circumstances. On the one hand, it is the interest rate of future events in the discount preferences of the agent in the multi-period model, which can be contrasted with the phrase discount factor. On the other hand, it means the ratio of US banks that can borrow from the Fed. For the purposes of this article, we will focus on the discount rate applicable to present value – in the discrete time model of commercial interest, the agent will b times the future discount, and people find that the interest rate is equal to a difference minus b divided by b, which can be written as r = (1-b) / b. This discount rate is critical to calculating a company’s discounted cash flow, which is used to determine what a series of future cash flows will be in today’s total. In practice, the discount rate can be a useful tool for investors to determine the potential value of certain businesses and investments in future expected cash flows. In order to determine the current value of future cash flows, this is actually the point at which the discount rate is applied to commercial activities. First, the time value and uncertainty risk of the currency must be assessed, with a lower discount rate implying lower uncertainty. The present value of higher future cash flows.