Results 31 to 40 of about 25,951 (217)
Stock returns, volatility and mean reversion in emerging and developed financial markets
Technological and Economic Development of Economy, 2018 The objective of this research is to measure and examine volatilities between important emerging and developed stock markets and to ascertain a relationship between volatilities and stock returns.
Rizwan Raheem Ahmed +4 more
doaj +1 more source
Axioms, 2022 Existing methods in portfolio management deterministically produce an optimal portfolio. However, according to modern portfolio theory, there exists a trade-off between a portfolio’s expected returns and risks.
Hyunjun Yang +2 more
doaj +1 more source
Advanced Healthcare Materials, EarlyView.Cerebral organoids are transforming brain research, yet the field remains fragmented. This comprehensive systematic review maps 738 studies published between 2014 and 2024 to uncover trends, gaps, and opportunities across neuroscience. Introducing OrganoidMap—an interactive, open‐access platform to explore and compare models—this work enables ...
Anna Wolfram +10 more
wiley +1 more source
Advanced Healthcare Materials, EarlyView.A two‐phase workflow (OFAT screening followed by central composite design) maps how processing variables tune PFCE‐PLGA nanoparticle size, dispersity, surface charge, loading, and 19F‐MRI signal. In situ, time‐resolved synchrotron SAXS tracks albumin‐corona growth on intact dispersions and reveals PFCE‐dependent adsorption pathways.
Joice Maria Joseph +11 more
wiley +1 more source
Optimization of national grain imports to balance risk and return: a portfolio theory approach
Environmental Research: Food SystemsGlobal grain trade plays a key role in food security. Many nations rely on imported grain to meet their dietary requirements. Grain imports may be at risk due to weather shocks, economic crises, or international conflicts. Countries aim to balance import
Deniz Berfin Karakoc, Megan Konar
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HOW RISKY ARE SIF'S SECURITIES? [PDF]
Annals of the University of Oradea: Economic Science, 2014 The capital asset pricing model (CAPM) lies at the heart of models in financial economics and it has a long history of theoretical and empirical investigations.
Claudiu Botoc, , ,
doaj
The Impact of the Risk Perception on Rentability in the Romanian Agricultural Sector [PDF]
Revista de Studii FinanciareThis study examines the effect of different levels of rentability on the perception of the risks in the agri-business sector in Romania. The risks analysed are related to production, market, institutional, personnel and financial and the rentability ...
Dumitru Florin Moise
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Advanced Healthcare Materials, EarlyView.ABSTRACT Magnetogenetic deep brain stimulation (MG‐DBS) represents a wireless neuromodulation that has demonstrated long‐lasting behavioral benefits in Parkinson's disease models. However, the circuit‐level mechanisms underlying these therapeutic effects have remained uncharacterized due to limitations of conventional neural interfaces.
Jakyoung Lee +10 more
wiley +1 more source
Optimal Portfolio Selection in the Stock Exchange: An Application of Value at Risk (VaR) Index [PDF]
فصلنامه پژوهشهای اقتصادی ایران, 2007 The main objective of this paper is to determine the optimum portfolio of the Tehran Stock Exchange with respect to the Value at Risk (VaR) index. Daily data are on the shares of 30 active companies traded in the Tehran Stock Exchange with daily expected
Javad Torkamani, Ali Hosseini
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Portfolio Optimization with a Mean–Absolute Deviation–Entropy Multi-Objective Model
Entropy, 2021 Investors wish to obtain the best trade-off between the return and risk. In portfolio optimization, the mean-absolute deviation model has been used to achieve the target rate of return and minimize the risk.
Weng Siew Lam +2 more
doaj +1 more source