Results 81 to 90 of about 88,380 (314)

Robust optimisation and its application to portfolio planning [PDF]

open access: yes, 2009
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Decision making under uncertainty presents major challenges from both modelling and solution methods perspectives.
Gregory, Christine
core  

INVESTOR SENTIMENT AND STOCK VOLATILITY: NEW EVIDENCE FROM BORSA ISTANBUL BENCHMARK AND SECTORAL INDICES

open access: yesKAÜ-İİBF Dergisi
This paper analyzes the effect of investor sentiment on stock returns and volatility in BIST benchmark and sectoral indices, using daily data from 2010 to 2023.
Mehmetcan Suyadal, Güven Sevil
doaj   +1 more source

Reimagining Lignin Valorization: Synthetic Biology–Enabled Sustainable Aromatic Carbon Biomanufacturing

open access: yesAdvanced Science, EarlyView.
The diagram illustrates a sustainable model of lignin valorization and carbon cycling based on microbial cell factories. Using lignin as the feedstock, synthetic biology technologies, including depolymerization, cell factory construction, pathway gene module integration, and metabolic network regulation, are applied to convert lignin into bulk ...
Na Li   +4 more
wiley   +1 more source

Investment Strategies, Fund Performance and Portfolio Characteristics [PDF]

open access: yes
This paper studies the relation between fund performance and the fund manager's investment strategy, which is based on the characteristics of the portfolio.
Engström, Stefan
core  

Adaptive Responses of Tropical Crops: A Multi‐Scale Omics Integrated Perspective

open access: yesAdvanced Science, EarlyView.
Tropical crops integrate genomic, morphological, physiological, and ecological adaptations to thrive under extreme and variable environments. This review highlights how natural selection, domestication, and breeding shape stress resilience, resource‐use strategies, and productivity in sugarcane, banana, cassava, rubber and oil palm, offering new routes
Peilin Wang   +11 more
wiley   +1 more source

To what extent is resampling useful in portfolio management? [PDF]

open access: yes, 2011
We take a new look at the resampled efficiencyTM technique developed by Michaud (1998) and compare it with the Markowitz mean-variance portfolio construction technique by assessing the performance of three representative portfolios, i.e.
Delcourt, François   +3 more
core   +1 more source

Asymmetric Volatility Spillovers in Varying Market Conditions and Portfolio Performance Analysis of the South African Foreign Exchange Market

open access: yesEconomies
This paper investigates the dynamics of volatility spillovers in the South African foreign exchange market across calm and crisis periods, with particular attention paid to the pre- and post-COVID-19 eras.
Hamdan Bukenya Ntare   +2 more
doaj   +1 more source

Performance Enhancement Model of Stock Market Portfolio of Iran Social Security Organization [PDF]

open access: yesIranian Journal of Finance
This paper primarily aims to introduce a model to enhance the performance of the stock market portfolio of the Iran Social Security Organization.
Mohammad Reza Ranjbarfallah   +3 more
doaj   +1 more source

Chlorine‐Functionalized Silane‐Modified Copper Electrocatalyst for Enhanced CO2 Reduction to Multi‐Carbon Products

open access: yesAdvanced Science, EarlyView.
A chlorine‐functionalized silane modifier (CPTMS) is introduced to cooperatively regulate CO2 reduction to C2+ products on Cu‐based catalysts. Dual‐functional interface sequentially enhances CO2 activation, intermediates protonation and C─C coupling, delivering a 5‐fold increase in C2+ faradaic efficiency (FE, 75% vs.
Ying Ying Ch'ng   +14 more
wiley   +1 more source

Portfolio Performance Gauging in Discrete Time Using a Luenberger Productivity Indicator [PDF]

open access: yes
This paper proposes a pragmatic, discrete time indicator to gauge the performance of portfolios over time. Integrating the shortage function (Luenberger, 1995) into a Luenberger portfolio productivity indicator (Chambers, 2002), this study estimates the ...
Olivier Brandouy   +3 more
core  

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