Results 141 to 150 of about 237,321 (276)

Stochastic Volatility, Smile & Asymptotics

open access: yes, 1998
We consider the pricing and hedging problem for options on stocks whose volatility is a random process. Traditional approaches, such as that of Hull & White, have been successful in accounting for the much observed smile curve, and the success of a ...
K. Ronnie Sircar, George C. Papanicolaou
core  

On Short‐Term Behavior of Implied Volatility for Index Options

open access: yesMathematical Finance, EarlyView.
ABSTRACT This paper investigates short‐term behavior of implied volatility of derivatives written on a market index when the index is constructed using a ranking procedure. Even when stock prices follow geometric Brownian motion dynamics, the ranking mechanism can lead to the observed term structure of at‐the‐money (ATM) implied volatility skew for ...
Huy N. Chau, Duy Nguyen, Thai Nguyen
wiley   +1 more source

Learning agents in Black-Scholes financial markets. [PDF]

open access: yesR Soc Open Sci, 2020
Vaidya T, Murguia C, Piliouras G.
europepmc   +1 more source

Reduced effects of social feedback on learning in Turner syndrome. [PDF]

open access: yesSci Rep, 2023
Björlin Avdic H   +9 more
europepmc   +1 more source

Smiling under stochastic volatility

open access: yes, 2002
Gonzalo Rubio and Ángel León acknowledge the financial support provided by Ministerio de Ciencia y Tecnología grants BEC2001-0636 and BEC2002-03797 respectively. Ángel León also acknowledges Generalitat Valenciana grant CTIDIA/2002/103.
Rubio Irigoyen, Gonzalo, León, Angel
openaire   +1 more source

Caring for the institution: An ethnography of quality assurance policy in U.S. rural primary care

open access: yesMedical Anthropology Quarterly, EarlyView.
Abstract Based on mixed‐methods, ethnographic research in a geographically isolated rural medical center in the upper midwestern United States, this paper explores the social implications of healthcare quality assurance policies highly reliant on managerial logics, including measurement and monitoring programs.
Chloe L. Warpinski
wiley   +1 more source

A Gamma Ornstein-Uhlenbeck model driven by a Hawkes process. [PDF]

open access: yesMath Financ Econ, 2021
Bernis G   +3 more
europepmc   +1 more source

Time, place, person: Field epidemiology as a political practice

open access: yesMedical Anthropology Quarterly, EarlyView.
Abstract Five years after the end of the Ebola epidemic, a district in Sierra Leone received a measles alert. This article tells the story of the epidemic that followed and the response that was mounted in the context of the new global epidemic preparedness and biosecurity paradigms that govern the management of health emergencies.
Luisa Enria
wiley   +1 more source

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