Results 111 to 120 of about 106,916 (308)

Fuzzy portfolio selection in the trade-off between different economy trends and security returns

Applied Mathematics in Science and Engineering
Portfolio selection has been applied to the allocation of assets among the selected securities for obtaining the most profitable return. However, the theory of behavioural finance proposes that the investment proportions of securities are not only ...
Yin-Yin Huang, Jingchao Pan, Ruey-Chyn Tsaur, Nei-Chih Lin   +3 more
doaj   +1 more source

Does One Soros Make a Difference? A Theory of Currency Crises with Large and Small Traders [PDF]

Do large investors increase the vulnerability of a country to speculative attacks in the foreign exchange markets? To address this issue, we build a model of currency crises where a single large investor and a continuum of small investors independently ...
Amil Dasgupta, Giancarlo Corsetti, Shin, Hyun, Stephen Morris   +3 more
core  

Contact Lens with Moiré Patterns for High‐Precision Eye Tracking

Advanced Functional Materials, EarlyView.
This work presents a passive contact lens for high‐precision eye tracking, integrating a microscopic moiré grating label. The parallax‐induced shift of macroscopic moiré patterns enables angle measurement with 0.28° precision using a standard camera under ambient light.
Ilia M. Fradkin, Roman V. Kirtaev, Mikhail S. Mironov, Dmitriy V. Grudinin, Alexander A. Marchenko, Marina M. Chugunova, Valentin R. Solovei, Alexander V. Syuy, Andrey A. Vyshnevyy, Ilya P. Radko, Aleksey V. Arsenin, Valentyn S. Volkov   +11 more
wiley   +1 more source

Dumb money? Social network attention herding, sentiment, and markets

Journal of Finance and Data Science
Wallstreetbets (WSB) is the perfect echo chamber to study retail investor behaviour and markets. We introduce a direct measure of individual stock attention and the concept of forum-wide attention herding.
Chengcheng Charlie Huang, Pauline Shum Nolan   +1 more
doaj   +1 more source

Is it Social Influence on Beliefs Under Ambiguity? A Possible Explanation for Volatility Clustering [PDF]

Influencing and being influenced by others is the very essence of human behaviour. We put forward an exploratory asset-pricing model allowing for social influence on investor judgments under ambiguity.
Hammad A. Siddiqi
core   +1 more source

Trap‐Assisted Transport and Neuromorphic Plasticity in Lead‐Free 2D Perovskites PEA2SnI4

Advanced Functional Materials, EarlyView.
An artificial retina built from lead‐free layered perovskite (PEA)2SnI4 converts light input into a persistent photocurrent and sums successive flashes over time. Micro/nanocrystals integrated on electrodes act as synapse‐like pixels that perform temporal integration directly in hardware. This in‐sensor preprocessing merges detection and computation on
Ofelia Durante, Valeria Demontis, Jonas Riisnaes Karl, Lam Hoi Tung, Sebastiano De Stefano, Daniela Marongiu, Adolfo Mazzotti, Aditya Bhardwaj, Francesco Mattana, Elisa Pili, Selene Matta, Federico Paolucci, Michele Saba, Andrea Mura, Giovanni Bongiovanni, Monica F Craciun, Saverio Russo, Antonio Di Bartolomeo   +17 more
wiley   +1 more source

Effect of Market-Wide Investor Sentiment on South African Government Bond Indices of Varying Maturities under Changing Market Conditions

Economies
The excess levels of investor participation coupled with irrational behaviour in the South African bond market causes excess volatility, which in turn exposes investors to losses. Consequently, the study aims to examine the effect of market-wide investor
Fabian Moodley, Sune Ferreira-Schenk, Kago Matlhaku   +2 more
doaj   +1 more source

International capital flows and transmission of financial crises [PDF]

This paper proposes a model encompassing alternative views of contagion by highlighting the different channels of transmission of financial crises in an unifying framework.
Aditya Goenka, Melisso Boschi
core  

Laser Engineering of HfN‐Based Nanoparticles for Safe NIR‐I Photothermal and X‐ray Enhancing Cancer Therapies

Advanced Functional Materials, EarlyView.
In this study, we produced HfN‐based nanoparticles via femtosecond laser ablation in acetone. The nanoparticles exhibit a red‐shifted plasmonic resonance in the NIR‐I window, colloidal stability after coating with polyethyleneglycol, and excellent biocompatibility. The photothermal and X‐ray sensitization therapeutic effects were demonstrated for tumor
Julia S. Babkova, Ivan V. Zelepukin, Lyubov V. Gorelik, Anton L. Popov, Andrei I. Pastukhov, Gleb V. Tikhonowski, Maxim S. Savinov, Danil D. Kolmanovich, Nikita A. Pivovarov, Alina Yu. Kapitannikova, Anton A. Popov, Anna S. Sogomonyan, Vsevolod A. Skribitsky, Aziz B. Mirkasymov, Andrei V. Kabashin, Sergey M. Deyev   +15 more
wiley   +1 more source

Uncovering the distress anomaly: The role of insider silence and limited investor attention

International Review of Economics & Finance
This study investigates the role of insider silence in explaining the distress anomaly in equity markets. We find that limited investor attention contributes to the overpricing of distressed stocks, leading to predictable returns.
Yongming Chen, Hui Li
doaj   +1 more source