Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Statistical inference for the tangency portfolio in high dimension
Stockholm University, Faculty of Science, Department of Mathematics. University of Rwanda, Rwanda.
2021 (English)In: Statistics (Berlin), ISSN 0233-1888, E-ISSN 1029-4910, Vol. 55, no 3, p. 532-560Article in journal (Refereed) 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.

Place, publisher, year, edition, pages
2021. Vol. 55, no 3, p. 532-560
Keywords [en]
Tangency portfolio, high-dimensional asymptotics, hypothesis testing
National Category
Mathematics
Identifiers
URN: urn:nbn:se:su:diva-196726DOI: 10.1080/02331888.2021.1951730ISI: 000675362300001OAI: oai:DiVA.org:su-196726DiVA, id: diva2:1593900
Available from: 2021-09-14 Created: 2021-09-14 Last updated: 2022-02-25Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full text

Authority records

Muhinyuza, Stanislas

Search in DiVA

By author/editor
Muhinyuza, Stanislas
By organisation
Department of Mathematics
In the same journal
Statistics (Berlin)
Mathematics

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 56 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf