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Keywords:unsupervised learning 

Working Paper
Bayesian Nonparametric Learning of How Skill Is Distributed across the Mutual Fund Industry

In this paper, we use Bayesian nonparametric learning to estimate the skill of actively managed mutual funds and also to estimate the population distribution for this skill. A nonparametric hierarchical prior, where the hyperprior distribution is unknown and modeled with a Dirichlet process prior, is used for the skill parameter, with its posterior predictive distribution being an estimate of the population distribution. Our nonparametric approach is equivalent to an infinitely ordered mixture of normals where we resolve the uncertainty in the mixture order by partitioning the funds into ...
FRB Atlanta Working Paper , Paper 2019-3

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