Results 131 to 140 of about 2,168,507 (360)

Double-jump stochastic volatility model for VIX: evidence from VVIX [PDF]

open access: yesarXiv, 2015
The paper studies the continuous-time dynamics of VIX with stochastic volatility and jumps in VIX and volatility. Built on the general parametric affine model with stochastic volatility and jump in logarithm of VIX, we derive a linear relation between the stochastic volatility factor and VVIX index.
arxiv  

Stabilizing TiO2/CsPbI2Br Perovskite Buried Interface for All‐Inorganic Perovskite toward Highly Efficient Photodetectors

open access: yesAdvanced Materials Interfaces, EarlyView.
Polyvinyl pyrrolidone passivation enhances TiO2/CsPbI2Br interfaces, suppressing recombination and improving photodetector performance with faster response, higher photoresponsivity, and superior detectivity. Abstract Inorganic perovskites hold immense promise for optoelectronic applications, but their performance is often hindered by defects and trap ...
Shruti Shah   +12 more
wiley   +1 more source

PEMODELAN VOLATILITAS UNTUK PENGHITUNGAN VALUE AT RISK (VaR) MENGGUNAKAN FEED FORWARD NEURAL NETWORK DAN ALGORITMA GENETIKA

open access: yesMedia Statistika, 2014
High fluctuations in stock returns is one problem that is considered by the investors. Therefore we need a model that is able to predict accurately the volatility of stock returns.
Hasbi Yasin, Suparti Suparti
doaj   +1 more source

Volatility transmissions between renminbi and Asia-Pacific on-shore and off-shore U.S. dollar futures [PDF]

open access: yes
This paper uses multivariate GARCH techniques to study volatility spillovers between the Chinese non-deliverable forward market and seven of its Asia-Pacific counterparts over the period January 1998 to March 2005.
Colavecchio , Roberta, Funke, Michael
core  

Terahertz Metamaterial Sensors: Design Theory, Optimization Approach, and Advancements in Biosensing Applications

open access: yesAdvanced Materials Technologies, EarlyView.
This review provides an in‐depth overview of the design principles and optimization strategies for terahertz (THz) metamaterials (MMs) sensors based on the dielectric perturbation theory. Various structures and methods are explored to enhance sensor performance, focusing on improving sensitivity and Q‐factor.
Lei Cao   +9 more
wiley   +1 more source

Deep calibration of rough stochastic volatility models [PDF]

open access: yesarXiv, 2018
Sparked by Al\`os, Le\'on, and Vives (2007); Fukasawa (2011, 2017); Gatheral, Jaisson, and Rosenbaum (2018), so-called rough stochastic volatility models such as the rough Bergomi model by Bayer, Friz, and Gatheral (2016) constitute the latest evolution in option price modeling.
arxiv  

Volatility dependence across Asia-Pacific on-shore and off-shore U.S. dollar futures markets [PDF]

open access: yes
This paper estimates switching autoregressive conditional heteroscedasticity (SWARCH) time series models for weekly returns of nine Asian forward exchange rates.
Colavecchio , Roberta, Funke, Michael
core  

Sustainable Sensors Prepared by Environmentally Benign Means for Improving the Environmental Footprint of Wearable Electronics

open access: yesAdvanced Materials Technologies, EarlyView.
A stretchable and bendable resistance sensor made predominantly from sustainable and biodegradable components is conductive courtesy a water soluble self‐doped conjugated polymer. The wearable sensor measures micromovements by changes in its resistance and it can track both human movement and phonation. Abstract Sustainable electronic devices offer the
Cephas Amoah   +2 more
wiley   +1 more source

Modelling and Estimating the Forward Price Curve in the Energy Market [PDF]

open access: yes
The stochastic or random nature of commodity prices plays a central role in models for valuing financial contingent claims on commodities. In this paper, by enhancing a multifactor framework which is consistent not only with the market observable forward
Boda Kang, Carl Chiarella, Les Clewlow
core  

Home - About - Disclaimer - Privacy