# Bootstrapping Portfolio Risk

Bootstrapping, originally proposed by Bradley Efron, is a statistic technique to approximate the sampling distribution of a parameter . The term bootstrap was coined from the phrase "to pick oneself up from his own bootstraps". Something seemingly impossible for a person, just like the bootstrap technique of obtaining more information from the sample. The prominent use of the Bootstrap rose when computing power and speed became faster as well as cheaper. The bootstrap (certain usages) often outperform other mathematical measures because it makes less assumptions such the pop. distribution, relevant parameters, etc. Furthermore, the bootstrap can approximate most measures whereas analytically deriving […]