State price density estimation via nonparametric mixtures
State price density estimation via nonparametric mixtures
复制标题
通过非参数混合进行状态价格密度估计
DOI:
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发表时间:
2009
期刊:
影响因子:
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通讯作者:
M. Yuan
中科院分区:
文献类型:
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作者:
M. Yuan
We consider nonparametric estimation of the state price density encapsulated in option prices. Unlike usual density estimation problems, we only observe option prices and their corresponding strike prices rather than samples from the state price density. We propose to model the state price density directly with a nonparametric mixture and estimate it using least squares. We show that although the minimization is taken over an infinitely dimensional function space, the minimizer always admits a finite dimensional representation and can be computed efficiently. We also prove that the proposed estimate of the state price density function converges to the truth at a ``nearly parametric' rate.