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Estimating the Risk Neutral Probability Density Functions Natural Spline versus Hypergeometric Approach Using European Style Options
Bu, Ruijun, (2005)
Conditional Maximum Likelihood Estimation of Higher-Order Integer-Valued Autoregressive Processes
Bu, Ruijun, (2006)
Estimating option implied risk-neutral densities using spline and hypergeometric functions
Bu, Ruijun, (2007)