...Generally, if the income that will certainly be received at the end of period i ( i = 1, 2, ..., n ) is Ri , and the interest rate for period i is ri , then the present value V of Ri can be calculated as follows. In the above formula , the interest rate ri is called the discount rate, and V is also called the discount value. The above is about the present value when the future value is certain, but when the future value is uncertain, the discount rate increases according to the degree of uncertainty. ... *Some terminology explanations that mention "rate of discount" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…一般的には,i期(i=1,2,…,n)の期末に確実に受け取られる収入をRi,i期の利子率をriとすれば,Riの現在価値Vはつぎのようにして求められる。上の式で,利子率riは割引率rate of discountと呼ばれ,Vは割引価値discount valueとも呼ばれる。 以上は,将来の価値が確実である場合の現在価値についてであるが,将来の価値が不確実である場合には,不確実性の程度に応じて割引率が上昇する。… ※「rate of discount」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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