为什么我们的现值公式对资本利得只字不提？
Why does our formula for present value say nothing about capital gains?
我们将计算净现值的公式计作C0，在时点0（就是指今天）的现金流通常是一个负数。
The formula forcalculating NPV can be written as remembering that C0, the cash flow at time 0(that is, today), will usually be a negative number.
将期权价值纳入净现值的计算公式中，扩展了传统的NPV法。
By adding the value of options to the NPV formula, we extend the traditional NPV rules.
前者就是级差矿租和绝对矿租（统称为矿租或矿山地租） ，是通过收益现值法公式计算出来的超额利润。
The former is called the graded mine rent and the latter absolute mine rent and they are the excess profit obtained by the equation of existing income value.
给出了矛盾解决的办法，举例介绍了广义的递延年金现值计算公式。
In the end, it gives the formula of the calculation of the broad sense of the postponing annuity.
探讨了资金时间价值的概念、资金时间价值的衡量指标之一年金的概念、种类，着重对年金终值、年金现值的计算公式进行了推导。
In this paper, we have discussed the comprehension of the concepts the time value of money and the annuity that is one of the standard for distinguishing the time value of money.
探讨了资金时间价值的概念、资金时间价值的衡量指标之一年金的概念、种类，着重对年金终值、年金现值的计算公式进行了推导。
In this paper, we have discussed the comprehension of the concepts the time value of money and the annuity that is one of the standard for distinguishing the time value of money.
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