基于无套利假设，给出了WACC的精确公式。
Based on the assumption of no arbitrage, an accurate WACC formula is derived.
在无套利假设下，讨论了多叉树模型中鞅测度的构造问题。
This paper discussed the construction of martingale measures in multinomial market model under the hypothesis of no arbitrage opportunity.
传统的期权定价方法都是在无套利、均衡、完备市场的假设下推导得出的，这使得它们在适用的时候受到很多的限制。
Because traditional pricing methods are based on the assumption of no arbitrage, well balanced and complete market, there are many restrictions in the pricing process.
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