Till Örebro universitet

oru.seÖrebro universitets publikationer
Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Statistical inference for the tangency portfolio in high dimension
Örebro universitet, Handelshögskolan vid Örebro Universitet. Department of Statistics.ORCID-id: 0000-0003-0203-4688
Örebro universitet, Handelshögskolan vid Örebro Universitet. Department of Statistics.ORCID-id: 0000-0002-1395-9427
Department of Mathematics, Stockholm University, Stockholm, Sweden; Department of Mathematics, College of Science and Technology, University of Rwanda, Kigali, Rwanda.
2021 (Engelska)Ingår i: Statistics, ISSN 0233-1888, Vol. 55, nr 3, s. 532-560Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

In this paper, we study the distributional properties of the tangency portfolio (TP) weights assuming a normal distribution of the logarithmic returns. We derive a stochastic representation of the TP weights that fully describes their distribution. Under a high-dimensional asymptotic regime, i.e., the dimension of the portfolio, k, and the sample size, n, approach infinity such that k/n -> c is an element of (0, 1), we deliver the asymptotic distribution of the TP weights. Moreover, weconsider tests about the elements of the TP and derive the asymptotic distribution of the test statistic under the null and alternative hypotheses. In a simulation study, we compare the asymptotic distribution of the TP weights with the exact finite sample density. Wealso compare the high-dimensional asymptotic test with an exact small sample test. We document a good performance of the asymptotic approximations except for small sample sizes combined with c close to one. In an empirical study, we analyse the TP weights in portfolios containing stocks from the S&P 500 index.

Ort, förlag, år, upplaga, sidor
Taylor & Francis, 2021. Vol. 55, nr 3, s. 532-560
Nyckelord [en]
Tangency portfolio, high-dimensional asymptotics, hypothesis testing
Nationell ämneskategori
Sannolikhetsteori och statistik Nationalekonomi
Identifikatorer
URN: urn:nbn:se:oru:diva-93419DOI: 10.1080/02331888.2021.1951730ISI: 000675362300001Scopus ID: 2-s2.0-85110941947OAI: oai:DiVA.org:oru-93419DiVA, id: diva2:1583306
Tillgänglig från: 2021-08-05 Skapad: 2021-08-05 Senast uppdaterad: 2023-12-08Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Övriga länkar

Förlagets fulltextScopus

Person

Karlsson, SuneMazur, Stepan

Sök vidare i DiVA

Av författaren/redaktören
Karlsson, SuneMazur, Stepan
Av organisationen
Handelshögskolan vid Örebro Universitet
Sannolikhetsteori och statistikNationalekonomi

Sök vidare utanför DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 327 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf