厂商采用新技术所生产的新产品的扩散具有"S形"的特征。现有实物期权决策模型未能考虑该特征,模型预测值与实际值有较大差距,易导致决策失误。假设新产品价格服从均值回归过程,基于Bass模型推导出新产品扩散方程,运用三叉树方法,构建了离散时间状态下结合新产品扩散特征的实物期权决策模型,得到了新技术采用的最优时机,为决策者提供了一个更为准确且便于操作的方法。
Since existing real option pricing models fail to express the diffusion feature in new product sales,the real situation differs from the analytical result of model.With the hypothesis that new product price follows mean-reverting process,as well as combining new product diffusion equation derived by Bass model,a new real option pricing model integrating diffusion feature of new production under discrete time has been constructed by adopting trinomial tree method.Based on the new model,the optimal adoption timing can be gotten.