Results 1 to 10 of about 19,433 (155)

Cover's universal portfolio, stochastic portfolio theory, and the numéraire portfolio. [PDF]

open access: yesMath Financ, 2019
AbstractCover's celebrated theorem states that the long‐run yield of a properly chosen “universal” portfolio is almost as good as that of the best retrospectively chosen constant rebalanced portfolio. The “universality” refers to the fact that this result is model‐free, that is, not dependent on an underlying stochastic process.
Cuchiero C, Schachermayer W, Wong TL.
europepmc   +8 more sources

Portfolio Model Considering Normal Uncertain Preference Relations of Investors [PDF]

open access: yesEntropy
The paper examines the application of uncertainty theory to portfolio decision making, specifically focusing on constructing portfolio models based on uncertain preference relations.
Yu Zhou, Chun Yan, Xiangrong Wang
doaj   +2 more sources

Coherent Diversification Measures in Portfolio Theory: An Axiomatic Foundation

open access: yesRisks, 2022
We provide an axiomatic foundation for the measurement of correlation diversification in a one-period portfolio model. We propose a set of eight desirable axioms for this class of diversification measures.
Gilles Boevi Koumou, Georges Dionne
doaj   +3 more sources

Historical development of portfolio theory [PDF]

open access: yesTehnika, 2021
Portfolio theory occupies an essential place in modern finance, while portfolio management grounded on its achievements has been recognized as one of the main tasks of financial experts worldwide.
Leković Miljan M.
doaj   +1 more source

Behavioral portfolio theory and behavioral asset pricing model as an alternative to standard finance concepts [PDF]

open access: yesEconomic Horizons, 2019
The growing gap between standard finance theory and practice has made way for the emergence of new theories and the development of new asset-pricing models.
Miljan Lekovic
doaj   +1 more source

Functional Portfolio Optimization in Stochastic Portfolio Theory

open access: yesSIAM Journal on Financial Mathematics, 2022
In this paper we develop a concrete and fully implementable approach to the optimization of functionally generated portfolios in stochastic portfolio theory. The main idea is to optimize over a family of rank-based portfolios parameterized by an exponentially concave function on the unit interval. This choice can be motivated by the long term stability
Steven Campbell, Ting-Kam Leonard Wong
openaire   +3 more sources

Leptokurtic portfolio theory [PDF]

open access: yesThe European Physical Journal B - Condensed Matter and Complex Systems, 2006
The question of optimal portfolio is addressed. The conventional Markowitz portfolio optimisation is discussed and the shortcomings due to non-Gaussian security returns are outlined. A method is proposed to minimise the likelihood of extreme non-Gaussian drawdowns of the portfolio value.
Robert Kitt, Jaan Kalda
openaire   +2 more sources

A Theory of Patent Portfolios [PDF]

open access: yesSSRN Electronic Journal, 2013
This paper develops a theory of patent portfolios in which firms accumulate an enormous amount of related patents, which makes it impractical to develop new products that avoid inadvertent infringement. We show that patent peace arises if product market competition is weak and patent portfolios are either sufficiently weak or sufficiently strong with ...
Choi, Jay Pil, Gerlach, Heiko
openaire   +7 more sources

Multi-period uncertain portfolio selection model with prospect utility function.

open access: yesPLoS ONE, 2022
In this paper, we discuss a multi-period portfolio optimization problem based on uncertainty theory and prospect theory. We propose an uncertain multi-period portfolio selection model, in which the return utility and risk of investment are measured by ...
Gaohuizi Guo, Yao Xiao, Cuiyou Yao
doaj   +3 more sources

Investment risk management by applying contemporary modern portfolio theory [PDF]

open access: yesMegatrend Revija, 2015
Investment risk is the principal threat to the assets side of the balance sheets of financial institutions. It is evident that investors who concentrate their wealth on one type of securities can rarely be found.
Jakšić Milena, Leković Miljan
doaj   +1 more source

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