ArticlePORTFOLIO SELECTION*Harry M. MarkowitzThe Rand Corporation·1952·enABIABI:AkademIndex/openalex/2026.other.692656CiteAbstractNo abstract available.IdentifiersDOI10.1111/j.1540-6261.1952.tb01525.xCitations and referencesCited by 20 referencesMetrics — AkademScholar