Results 31 to 40 of about 18,315 (253)

Monitoring Stock Market Returns: A Stochastic Approach

Croatian Operational Research Review, 2022
Financial analysis plays a major role in investing the disposable income of various economic agents. Stock markets are predominantly made up of small investors with limited information and low capabilities for a suitable analysis.
Filip Peovski, Violeta Cvetkoska, Predrag Trpeski, Igor Ivanovski   +3 more
doaj   +1 more source

Modern Portfolio Theory, Digital Portfolio Theory and Intertemporal Portfolio Choice

American Journal of Industrial and Business Management, 2017
The paper compares three portfolio optimization models. Modern portfolio theory (MPT) is a short-horizon volatility model. The relevant time horizon is the sampling interval. MPT is myopic and implies that investors are not concerned with long-term variance or mean-reversion.
openaire   +2 more sources

s‐Orbital Mediated Metavalent Bonding Enables State‐Of‐The‐Art n‐Type AgBiSe2 Thermoelectrics

Advanced Functional Materials, EarlyView.
Metavalent bonding (MVB) underpins the exceptional property portfolio of chalcogenides. Typical MVB solids are mainly found in p‐bonded systems. This work reveals that MVB can also be formed with s‐p orbital interactions upon forming a single‐electron σ‐bond, as exemplified in AgBiSe2.
Binrong Huang, Dasol Kim, Yuan Yu, Jinxuan Zhong, Jianbo Zhu, Yaoling Shen, Yu Guo, Moran Wang, Jiawei Huang, Tu Lyu, Nan Lin, Yongsheng Zhang, Matthias Wuttig, Lipeng Hu   +13 more
wiley   +1 more source

Optimization method of investment package based on Markowitz portfolio theory

Вестник Дагестанского государственного технического университета: Технические науки
Objective. The aim of the study is to implement and evaluate the optimization method based on the Markowitz portfolio theory. Method. The model is built using the Python programming language and the necessary libraries.
A. D. Baydalin
doaj   +1 more source

Decision Making in Real Estate: Portfolio Approach

Cybernetics and Information Technologies, 2021
An investment policy is suggested about assets on real estate markets. Such analysis recommends investments in non-financial assets and optimization of the results from such decisions.
Stoilov Todor, Stoilova Krasimira, Vladimirov Miroslav   +2 more
doaj   +1 more source

Azaporphyrinoid‐Based Photo‐ and Electroactive Architectures for Advanced Functional Materials

Advanced Materials, EarlyView.
A long‐standing collaboration between the Torres and Guldi groups has yielded diverse azaporphyrinoid‐based donor‐acceptor nanohybrids with promising applications in solar energy conversion. This conspectus highlights key molecular platforms and structure‐function relationships that govern light and charge management, supporting the rational design of ...
Jorge Labella, Kobra Azizi, Dirk M. Guldi, Tomás Torres   +3 more
wiley   +1 more source

Self‐Assembled Monolayers in p–i–n Perovskite Solar Cells: Molecular Design, Interfacial Engineering, and Machine Learning–Accelerated Material Discovery

Advanced Materials, EarlyView.
This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley   +1 more source

A Heuristic Approach to Forecasting and Selection of a Portfolio with Extra High Dimensions

Mathematics, 2023
The performance of a financial portfolio depends on the output of two tasks: first, a forecasting process, where quantities of interest for the investors, such as the rate of return and risk for each stock, are predicted into the future, and second, an ...
Yujia Hu
doaj   +1 more source

Low‐Dimensional MOF Nanoarchitectonics: Progress in MOF‐2D Material Hybrid Architectures for Energy Conversion and Storage

Advanced Materials, EarlyView.
This review highlights the integration of metal‐organic frameworks (MOFs) and two‐dimensional (2D) materials through dimensional interface engineering. By addressing intrinsic limitations like poor conductivity and agglomeration, these hybrid architectures optimize interfacial charge and mass transport.
Prashant Dubey, Norman C.‐R. Chen, Xiangyang Liu, Yongqi Yin, Keisuke Shirasaki, Kevin C.‐W. Wu, Yingji Zhao, Yusuke Yamauchi   +7 more
wiley   +1 more source

Decision-making model of electricity purchasing agent service of power grid enterprises for multi-time-scale market transactions

Zhejiang dianli, 2023
Power grid enterprises need to monitor the purchasing load of the agent and the changes of the market price， and evaluate the risks caused by the multiple uncertainties of the fluctuation of market transaction price， actual load fluctuation and demand ...
WU Huahua, ZHANG Si, GAN Wen, SHEN Chengliang, JIANG Xinyue, LI Yating, YANG Li   +6 more
doaj   +1 more source