Results 91 to 100 of about 75,644 (264)
A Variance Decomposition for Stock Returns [PDF]
The Economic Journal, 1991 This paper shows that unexpected stock returns must be associated with changes in expected future dividends or expected future returns. A vector autoregressive method is used to break unexpected stock returns into these two components. In U.S. monthly data in 1927-88, one-third of the variance of unexpected returns is attributed to the variance of ...
openaire +2 more sources
The Lepto-Variance of Stock Returns
SSRN Electronic Journal, 2022 The Regression Tree (RT) sorts the samples using a specific feature and finds the split point that produces the maximum variance reduction from a node to its children. Our key observation is that the best factor to use (in terms of MSE drop) is always the target itself, as this most clearly separates the target.
openaire +2 more sources
Electrolyte Design for Fast‐Charging Lithium‐Based Batteries
Advanced Materials, EarlyView.A decade of progress in fast‐charging electrolytes for lithium batteries is reviewed. Electrolyte design strategies spanning solvents, salts, additives, and advanced systems, such as localized high‐concentration electrolytes (LHCEs), are summarized. Advanced diagnostic tools for lithium plating and interphase chemistry are discussed, with perspectives ...
Chen Liu, Zehao Cui, Arumugam Manthiram
wiley +1 more source
Advanced Materials, EarlyView.Ceramic‐based V2O5/Fe3O4 hybrid films are shaped into butterfly‐proboscis‐inspired microscroll actuators. Magnetic triggering initiates unrolling, while geometry‐programmed elastic strain energy drives rapid recoil, enabling fast, reversible, durable, and load‐bearing actuation under near‐field magnetic stimulation.
Semi Kim +5 more
wiley +1 more source
I-Finance, 2016 The purpose of this research is to determine the influence of the company's performance using Independent Variables ROA, ROE, NPM and CR to Stock Return. This research uses Eviews Application 7.
ARYANTI ARYANTI, MAWARDI MAWARDI
doaj
Advanced Materials, EarlyView.Spatiotemporal control over cell behavior within bioprinted constructs remains a key challenge in biofabrication. Volumetric bioprinting using multi‐wavelength light sources permits to activate light‐sensitive intracellular proteins as well as optogenetic gene and protein expression circuits in bioprinted cells, in addition to enabling fast printing of
Davide Ribezzi +14 more
wiley +1 more source
INVESTORS’ SENTIMENT, VOLATILITY AND STOCK RETURN: EVIDENCE FROM THE NIGERIANEXCHANGE GROUP (NGX)
Gusau Journal of Accounting and FinanceFor decades, theory has been put forward that investors in the market are rational and the price of assets fully reflects all available information in the market.
Oloruntoba OYEDELE
doaj +1 more source
Advanced Materials, EarlyView.A circular upcycling strategy transforms waste poly(ethylene terephthalate) bottles into microwave‐responsive Ni@C catalyst featuring lattice‐distorted nickel cores and defective carbon shells. These strain‐rich heterointerfaces enhance dielectric loss and promote localized microwave hotspots, accelerating peroxymonosulfate activation and polymer‐chain
Xiao Lu +7 more
wiley +1 more source
PERUBAHAN LIKUIDITAS AKIBAT PEMECAHAN SAHAM: STUDI DI PASAR MODAL INDONESIA
Jurnal Economia, 2014 Abstrak: Perubahan Likuiditas Akibat Pemecahan Saham: Studi di Pasar Modal Indonesia. Penelitian ini ingin mengetahui pengaruh pemecahan saham terhadap likuiditas dalam jangka pendek; pengaruh pemecahan saham, ukuran perusahaan dan return saham secara ...
Muniya Alteza +2 more
doaj
Stock return anomalies identification during the Covid-19 with the application of a grouped multiple comparison procedure. [PDF]
Econ Anal Policy, 2023 Chang CL, Cai Q.
europepmc +1 more source