Compute the inflation-adjusted real return r_real = (1+r_nom)/(1+i) − 1 from the nominal return and the inflation rate.
输入名义收益率 r_nom 与通货膨胀率 i,求实际收益率。
| Item | Formula | Source / Standard |
|---|---|---|
| Real return | (1+nominal)/(1+inflation) - 1 | Fisher equation |
| Approximation | Nominal rate minus inflation rate | approximate real return |
| Purchasing power | Grows at the real return rate | purchasing power |