And option pricing considers the flexibility of investment. So valuation model according to theory of EVA and option can estimate the firm value more accurately and objectively than other models.

在EVA评估模型基础上嵌入实物期权定价理论后，由于考虑了公司的柔性价值，所以能更准确和客观地估计上市公司的价值。

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This paper proposes the variable volatilities multi-stage compound real option model and gives its application on venture capital investment valuation;

文中提出了变波动率多期复合实物期权模型，并将该模型应用于风险投资项目评价；

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Basing on the analysis of those models, this paper studies the default risk valuation model, investigates reset option with random time.

本文在分析了重置期权与带违约风险的期权定价模型的特点基础上，研究了随机时间的重置期权的定价问题。

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This may be the best-known danger in derivatives dealing: everyone in the markets knows that if shares stop trading or the share prices become much more volatile than expected, an option's market value will differ from the model's valuation.

ECONOMIST: Blind faith