Results 61 to 70 of about 43,372 (264)

Temporal trends in ophthalmic surgical demand in a universal healthcare system: an Ontario population-based study of over two decades

BMJ Open Ophthalmology, 2022
Tina Felfeli, Beate Sander, Sherif R El-Defrawy, Gener Austria, Reeza Menalo, Diana Vasiliu, Claudia Zanchetta   +6 more
doaj   +1 more source

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

Economies
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, John Weirstrass Muteba Mwamba, Franck Adekambi   +2 more
doaj   +1 more source

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

Iranian 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, Yeganeh Mosavi Jahromi, Asghar Abolhasani, Abbas Johari   +3 more
doaj   +1 more source

Silicon‐Based Anodes for Sulfide Solid‐State Batteries: Failure Mechanisms and Multiscale Design Strategies

Advanced Energy Materials, EarlyView.
Silicon anodes in sulfide SSBs face coupled electrochemo‐mechanical failure by interface instability. This review examined recent advances and proposed mitigation strategies via material‐, electrode/interface‐, and cell‐level‐ engineering. We further evaluate scalable synthesis of sulfide SEs.
Murugesan Karuppaiah, JaeWook Seo, SeEun Park, Seung Hyeok Chu, Jung Kyoo Lee   +4 more
wiley   +1 more source

CLUSTER ANALYSIS OF K-MEANS AND WARD METHOD IN FORMING A ROBUST PORTFOLIO: AN EMPIRICAL STUDY OF JAKARTA ISLAMIC INDEX

Barekeng
Building a portfolio is one method of reducing investment risk. Cluster analysis can shorten the time required to choose companies for a portfolio because it makes it easy to put firms in the same category together.
Zuva Amalina Zain, Noor Saif Muhammad Mussafi, Epha Diana Supandi   +2 more
doaj   +1 more source

Nickel‐Free Synthesis of Poly(pyrene‐4,5,9,10‐tetraone) for Sodium‐based Batteries: Insights into Electrode Architecture and Reversible Na‐ion Insertion

Advanced Energy Materials, EarlyView.
A nickel‐free and practical synthesis strategy to poly(pyrene tetraone) and its integration with a percolated CNTs/Ketjen Black network enables stable cycling and efficient energy storage in a sodium‐based batteries. This work demonstrates how controlling polymer structure and electrode architecture improves ion transport and mitigates dissolution in ...
Md. Adil, Robin Wessling, Nico Kokott, Elena Mena‐Osteritz, Benedikt Prifling, Markus Osenberg, Thomas Diemant, Volker Schmidt, Ingo Manke, Birgit Esser   +9 more
wiley   +1 more source

Passive Portfolio Management by Indexing: A Performance Analysis of High, Medium and Low Capitalization Indices in Mexico || Administración pasiva de portafolios mediante indexación: un análisis del desempeño de los índices de alta, mediana y baja capitalización en México

Revista de Métodos Cuantitativos para la Economía y la Empresa, 2018
In a passive investing strategy through indexation, the portfolio performance will depend largely on the ability to choose the best index. In this paper, we study the performance of four of the main stock indices in Mexico with the intention of selecting
Samaniego, Ángel, Rodríguez-Reyes, Luis Raúl   +1 more
doaj  

Cryptocurrencies and Portfolio Performance. Does Cryptocurrency Help Improve the Portfolio Performance?

Accounting, Finance & Governance Review, 2022
This paper investigates the performance of cryptocurrencies and market indices. Using the dynamic conditional correlation (DCC) model, the result shows that cryptocurrencies and market indices, contrary to much of the literature, tend to move in the same direction, resulting in little or no benefits in portfolio management. Dividing into the sub-sample
openaire   +1 more source

Do Tax Incentives for Farmland Leases Increase Farm Supply? Evidence From Iowa's Beginning Farmer Tax Credit

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT In recent decades, agriculture has become increasingly concentrated through horizontal mergers and acquisitions via corporate entities, and policy makers are concerned this will be exacerbated by the aging population of farm operators. To reduce market concentration in agriculture, many states have enacted policies to entice new prospective ...
Justin M. Ross, Wesley M. Zebrowski, Julia C. D. Valliant   +2 more
wiley   +1 more source

Labeling Quality or Quantity? The Differential Impact of Geographical Indications on Export Performance in Turkish Agri‐Food Products

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT This study investigates the impact of geographical indication (GI) certification on the export performance of Turkish agri‐food products by analyzing both trade volume and unit value dynamics. Drawing on monthly data from 2000 to 2024 across 22 GI‐certified products, the research employs product‐level regressions, fixed‐effects panel models ...
Ihlas Sovbetov, Muge Burcu Ozdemir
wiley   +1 more source