Results 51 to 60 of about 3,326,697 (175)

Beta Estimation Under Infrequent Trading: A Machine Learning Approach

open access: yesInternational Review of Finance, Volume 26, Issue 3, September 2026.
ABSTRACT When shares are traded infrequently, beta estimates are often severely biased. We find that machine learning methods significantly improve forecasts of the conventional beta proxy in this infrequently traded market. They generate superior beta forecasts, statistically and economically outperforming the traditional model used by practitioners ...
Alejandro Maldonado Mendoza   +1 more
wiley   +1 more source

The Numerical Solution of Fractional Black-Scholes-Schrodinger Equation Using the RBFs Method

open access: yesAdvances in Mathematical Physics, 2020
In this paper, radial basis functions (RBFs) method was used to solve a fractional Black-Scholes-Schrodinger equation in an option pricing of financial problems. The RBFs method is applied in discretizing a spatial derivative process.
Naravadee Nualsaard   +2 more
doaj   +1 more source

Unpacking the Local Pay Gap: New Insights Into CSR and Employee Relations

open access: yesInternational Review of Finance, Volume 26, Issue 3, September 2026.
ABSTRACT We examine the relationship between CEO local tournament incentives and corporate social responsibility (CSR) activities. Larger local pay gaps are linked to lower CSR engagement, driven exclusively by weaker performance in the employee relations dimension, characterized by fewer strengths and more concerns.
Hsin‐I Chou, Tu Nguyen, Jing Zhao
wiley   +1 more source

A Fast Computational Scheme for Solving the Temporal-Fractional Black–Scholes Partial Differential Equation

open access: yesFractal and Fractional, 2023
In this work, we propose a fast scheme based on higher order discretizations on graded meshes for resolving the temporal-fractional partial differential equation (PDE), which benefits the memory feature of fractional calculus.
Rouhollah Ghabaei   +3 more
doaj   +1 more source

A New Version of Black Scholes Equation Presented by Time-Fractional Derivative

open access: yes, 2018
In this article, a new time-fractional-order Black–Scholes equation has been derived. In this derivation, the asset price satisfies in a fractional-order stochastic differential equation.
SalehiM., ErjaeeG.H., FarhadiA.
core   +1 more source

How much is too much? Simulated population responses of a South African dwarf succulent to wild harvesting under climate change

open access: yesJournal of Applied Ecology, Volume 63, Issue 8, August 2026.
Wild harvesting poses an important threat to the persistence of South African dwarf succulent populations. Here, we identify sustainable harvesting thresholds for dwarf succulents and suggest that plant harvesting may be unsustainable under moderate to severe harvesting pressure, particularly with projected climatic pressures.
Arjan Engelen   +3 more
wiley   +1 more source

An Efficient Method for Solving Fractional Black-Scholes Model with Index and Exponential Decay Kernels

open access: yesJournal of Function Spaces, 2022
The Black-Scholes equation (BSe) is fascinating in the business world for predicting the performance of financial investment valuation systems. The Caputo fractional derivative (CFD) and Caputo-Fabrizio fractional derivative operators are used in this ...
Saima Rashid   +3 more
doaj   +1 more source

Bayesian Analysis of the Black-Scholes Option Price [PDF]

open access: yes, 2004
This paper investigates the statistical properties of the Black-Scholes option price under a Bayesian approach. We incorporate randomness, both in the price process and in volatility, to derive the prior and posterior densities of a European call option.

core   +2 more sources

Why Have CEO Pay Levels Become Less Diverse?

open access: yesThe Journal of Finance, Volume 81, Issue 4, Page 1893-1950, August 2026.
ABSTRACT This paper documents a new stylized fact: the cross‐sectional variation in CEO pay levels has declined precipitously in recent years. We offer one explanation for this decline, namely, firms are increasingly benchmarking CEO compensation to industry peers closest in size, thereby creating pay clusters.
TORSTEN JOCHEM   +2 more
wiley   +1 more source

The Debt‐Equity Spread

open access: yesThe Journal of Finance, Volume 81, Issue 4, Page 2005-2062, August 2026.
ABSTRACT We propose a measure of the valuation gap between debt and equity—debt‐equity spread (DES)—based on the difference between actual and equity‐implied credit spreads. DES predicts cross‐sectional stock and bond returns in opposite directions.
HUI CHEN, ZHIYAO CHEN, JUN LI
wiley   +1 more source

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