riskless asset的用法和樣例：
例句
- Taxes reduce the expected return on a risky asset but also lessen its riskiness.
稅收減少了風(fēng)險資產(chǎn)的預算收益，但也降低了它的風(fēng)險。 - A utility maximization model of the investment portfolio including risk-free asset is put forward, with short sales allowed.
摘要提出了在允許賣(mài)空情況下含有無(wú)風(fēng)險資產(chǎn)且借貸利率不同的效用最大化的投資組合模型。
