In his book 'Dynamic Hedging', Nassim Taleb gives the relation: P = 1.67*historical volatility, where P is the Parkinson number. What is the basis of this relationship. Does this hold under special ...
I look for a source to download historical monthly mutual fund cash level data from. Is there any free/cheap source available?
I am asking professionals for a help. There have already been the post Data Selection for Empirical Pricing Kernel Estimation (Stochastic Discount Factor) from Finance_Newbie. But I am wondering ...