free income meaning in Chinese

自由所得

Tax free income subsidy
免税的补贴收入
Other tax free income
其他免税所得
This guy slices meat all day long . he gets an average of a dollar tip per order and probably does 20 orders per hour . nice tax free income supplement
这家伙整天都在切肉。平均每次点餐他能得到1美元的小费，大概每小时可以赚20美元，额外收入的免税政策真好。
But the black - scholes model is valid just under some conditions , especially the assumption of complete market . this assumption draws a conclusion of the fundamental principle of “ absence of arbitrage ” , and the investor can obtain risk - free income only
但是black - scholes公式有着很多的假设前提,特别是它的核心是基于无套利思想的,即假设市场中的资产可以被完全复制,套利收益能够提前锁定。