id	keyword
ejpam-846	portfolio
ejpam-846	ϕ(x
ejpam-846	risk
ejpam-846	function
ejpam-846	edirisinghe
ejpam-846	model
ejpam-846	moment
ejpam-846	optimization
ejpam-846	sample
ejpam-846	expectation
ejpam-846	return