Results 91 to 100 of about 2,168,507 (360)

An In Situ Curing, Shear‐Responsive Biomaterial Designed for Durable Embolization of Microvasculature

open access: yesAdvanced Healthcare Materials, EarlyView.
NeoCast is a next‐generation, solvent‐free, non‐adhesive liquid embolic designed for indications where deep occlusion is desired (e.g., tumors and chronic subdural hematoma). This novel agent offers ideal embolic properties: injectability, controllability, excellent visibility, and biocompatibility.
Quynh P. Pham   +16 more
wiley   +1 more source

Spot price modeling and the valuation of electricity forward contracts : the role of demand and capacity. [PDF]

open access: yes
We propose a model where wholesale electricity prices are explained by two state variables: demand and capacity. We derive analytical expressions to price forward contracts and to calculate the forward premium.
Cartea, Álvaro, Villaplana, Pablo
core   +3 more sources

PRICE VOLATILITY, EXPECTATIONS AND MONETARY POLICY IN NIGERIA [PDF]

open access: yesAnalele Universităţii Constantin Brâncuşi din Târgu Jiu : Seria Economie, 2009
The study has as its objectives, to determine the influence of price volatility and price expectation in the rate of inflation as a measure of the price level.
Ajimuda Olumide
doaj  

A remark on Gatheral's 'most-likely path approximation' of implied volatility [PDF]

open access: yesarXiv, 2009
We give a new proof of the representation of implied volatility as a time-average of weighted expectations of local or stochastic volatility. With this proof we clarify the question of existence of 'forward implied variance' in the original derivation of Gatheral, who introduced this representation in his book 'The Volatility Surface'.
arxiv  

Implied volatility (also) is path-dependent [PDF]

open access: yesarXiv, 2023
We propose a new model for the coherent forecasting of both the implied volatility surfaces and the underlying asset returns.In the spirit of Guyon and Lekeufack (2023) who are interested in the dependence of volatility indices (e.g. the VIX) on the paths of the associated equity indices (e.g.
arxiv  

Designing for Degradation: Transient Devices Enabled by (Nano)Cellulose

open access: yesAdvanced Materials, EarlyView.
Recent progress in transient devices enabled by (nano)cellulosic materials is reviewed. Transiency mechanisms, advantages of nanocelluloses, and a suite of applications are discussed. A circular thinking approach coupled with life cycle assessment is applied to critically revisit the potential, advantages, and challenges of nanocellulose‐enabled ...
Lucas J. Andrew   +2 more
wiley   +1 more source

Pricing Interest Rate Derivatives under Volatility Uncertainty [PDF]

open access: yesarXiv, 2020
In this paper, we study the pricing of contracts in fixed income markets under volatility uncertainty in the sense of Knightian uncertainty or model uncertainty. The starting point is an arbitrage-free bond market under volatility uncertainty. The uncertainty about the volatility is modeled by a G-Brownian motion, which drives the forward rate dynamics.
arxiv  

Hedging under rough volatility [PDF]

open access: yesarXiv, 2021
In this chapter we first briefly review the existing approaches to hedging in rough volatility models. Next, we present a simple but general result which shows that in a one-factor rough stochastic volatility model, any option may be perfectly hedged with a dynamic portfolio containing the underlying and one other asset such as a variance swap.
arxiv  

Enhancing Ultrasound Power Transfer: Efficiency, Acoustics, and Future Directions

open access: yesAdvanced Materials, EarlyView.
Implantable devices significantly enhance healthcare but are limited by battery life. Ultrasound power transfer technology offers a promising solution for sustainable operation. This review addresses gaps in current research, particularly in sound field analysis and energy efficiency optimization.
Yi Zheng   +6 more
wiley   +1 more source

Semi-Analytical Option Pricing Under Double Heston Jump-Diffusion Hybrid Model

open access: yesJournal of Mathematical Sciences and Modelling, 2018
We examine European call options in the jump-diffusion version of the Double Heston stochastic volatility model for the underlying price process to provide a more flexible model for the term structure of volatility.
Rehez Ahlip   +2 more
doaj   +1 more source

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