Diversification and portfolio theory: a review

GB Koumou - Financial Markets and Portfolio Management, 2020 - Springer
Diversification is one of the major components of investment decision-making under risk or
uncertainty. However, paradoxically, as the 2007–2009 financial crisis revealed, the concept …

[HTML][HTML] Data-driven optimization for seismic-resilient power network planning

A Oneto, Á Lorca, E Ferrario, A Poulos… - Computers & Operations …, 2024 - Elsevier
Many regions of the planet are exposed to seismic hazards that can cause devastating
consequences on power systems. Due to these systems' crucial role, the evaluation and …

Unifying portfolio diversification measures using Rao's quadratic entropy

B Carmichael, GB Koumou, K Moran - Journal of Quantitative Economics, 2023 - Springer
This paper uses Rao's Quadratic Entropy (RQE), a general measure of diversity of
population, to analyze portfolio diversification. We provide both theoretical and empirical …

Risk budgeting using a generalized diversity index

GB Koumou - Journal of Asset Management, 2023 - Springer
Uniform budgeting in risk budgeting (RB), which results in risk parity (RP), can be sub-
optimal in the case where assets are correlated. In particular, it may lead to solutions with …

Factor investing and risk allocation: From traditional to alternative risk premia harvesting

JM Maeso, L Martellini - The Journal of Alternative …, 2017 - search.proquest.com
Sophisticated institutional investors have a growing interest in factor investing, a disciplined
approach to portfolio management that is broadly meant to allow investors to harvest risk …

Proverbial Baskets Are Uncorrelated Risk Factors! A Factor-Based Framework for Measuring and Managing Diversification in Multi-Asset Investment Solutions

L Martellini, V Milhau - Journal of Portfolio Management, 2018 - search.proquest.com
Multi-asset investment solutions have become increasingly popular among sophisticated
institutional investors focusing on efficient harvesting of risk premia across and within asset …

[PDF][PDF] The effect of absolute return strategies on risk-factor diversification and portfolio performance

R Cloutier, AC Mikkelson - Investment Management & …, 2023 - businessperspectives.org
Absolute return strategies attempt to generate positive returns that are uncorrelated with
equity or bond markets and can be used to increase diversification and performance within …

Coherent diversification measures in portfolio theory: An axiomatic foundation

GB Koumou, G Dionne - Risks, 2022 - mdpi.com
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 …

Better investing through factors, regimes and sensitivity analysis

C Homescu - Regimes and Sensitivity Analysis (January 25, 2015), 2015 - papers.ssrn.com
Recent periods of market turbulence and stress have created considerable interest in
credible alternatives to traditional asset allocation methodologies. It would be preferred if …

[PDF][PDF] Cost of Asset Allocation in Equity Market: How Much Do Investors Lose Due to Bad Asset Class Design?

WC Kim, Y Lee, YH Lee - The Journal of Portfolio Management, 2014 - researchgate.net
In investment processes, it is almost impossible to allocate wealth directly at a single-
security level in the huge investable universe. Consequently, investors divide the whole …