Results 61 to 70 of about 1,678 (198)

The PhenoChange network protocol for monitoring leaf phenology in tropical dry ecosystems using phenocameras

Methods in Ecology and Evolution, EarlyView.
Abstract Tropical dry ecosystems (TDEs) cover half of the tropics and play a key role in global carbon dynamics. TDEs present distinct canopy and ground layers that often exhibit contrasting phenological patterns. On‐the‐ground observations of phenology by the human eye, though valuable, may suffer from limited temporal resolution and observer biases ...
Desirée Marques Ramos, Francisco Maiato P. Gonçalves, Magna Soelma de Moura, Mário Marcos do Espírito‐Santo, Ítalo Antônio Cotta Coutinho, Vera De Cauwer, Bruna de Costa Alberton, Jonathan Muledi, Casey M. Ryan, Manuel Jundo Cachissapa, Millena C. N. Santana, Gabriel Ileni K. Uusiku, Antonia Mirelle Lopes Marques, Frances O'Leary, Renata D. Françoso, Nattália do Prado Neves, John L. Godlee, Maria Maraíza P. Santos, Leena Naftal, David Nkulu, Mathew Williams, Albert B. Phillimore, Andrew D. Richardson, Matúš Seči, Milcíades Chicomo, Natasha Wesely, David T. Milodowski, Sam B. Harrison, Ludovica Oddi, Consolata Siniscalco, Fabrícia Conceição M. Mota, Jurandy Almeida, Ricardo da Silva Torres, Mario B. B. Siqueira, Kyle G. Dexter, Leonor Patricia C. Morellato   +35 more
wiley   +1 more source

Numerical Solution of Fractional Black-Scholes Equation by Using Radial Basis Function (RBF) Approximation Method

پژوهش‌های ریاضی, 2020
Introduction Fractional Differential Calculus (FDC) began in the 17th century and its initial discussions were related to the works of Leibniz, Lagrange, Abel and others.
Sedighe Sharifian, Ali R. Siheili, A. Neisy   +2 more
doaj  

About the valuation of American option under Black-Scholes model : a numerical study

Moroccan Journal of Pure and Applied Analysis, 2023
In the history of option pricing, Black-Scholes model is one of the most significant models. In this paper, we present a new numerical strategy for valuing American option pricing problems governed by Black-Scholes model (BSM). Numerical computations are
Malek R.
doaj   +1 more source

The effect of addback statutes on CEO compensation

Accounting &Finance, Volume 65, Issue 1, Page 793-818, March 2025.
Abstract Exploiting the adoption of addback statutes, which occurred at different times, as exogenous shocks to corporate taxable income, we examine the effect of tax policy changes on the compensation of chief executive officers (CEOs). We provide evidence that CEOs of firms headquartered in states affected by addback statutes experienced a decrease ...
Karel Hrazdil, Gerald Lobo, Ray Zhang, Weiji Zhang   +3 more
wiley   +1 more source

Mitigating policy uncertainty: What financial markets reveal about firm‐level lobbying

American Journal of Political Science, EarlyView.
Abstract Elections can lead to substantial policy changes and, thus, are a significant source of risk. Firms can respond to such policy uncertainty by lobbying, but it is hard to quantify whether they do so and, if so, how much lobbying benefits them. We construct a new dataset and leverage investors’ expectations of variability in stock returns in the
Kristy Buzard, Nathan Canen, Sebastian Saiegh   +2 more
wiley   +1 more source

The Development of Fractional Black–Scholes Model Solution Using the Daftardar-Gejji Laplace Method for Determining Rainfall Index-Based Agricultural Insurance Premiums

Mathematics
The Black–Scholes model is a fundamental concept in modern financial theory. It is designed to estimate the theoretical value of derivatives, particularly option prices, by considering time and risk factors. In the context of agricultural insurance, this
Astrid Sulistya Azahra, Muhamad Deni Johansyah, Sukono   +2 more
doaj   +1 more source

Board Independence and Adjustment Speed of CEO Inside Debt

European Financial Management, EarlyView.
ABSTRACT We find that firms with more independent directors adjust CEO inside debt towards an optimum more quickly. This effect is more pronounced in financially unconstrained, growth, and under‐levered firms, and also firms led by more powerful or overconfident CEOs.
Bonnie Buchanan, Shuhui Wang, Tina Yang
wiley   +1 more source

An interval version of Black–Scholes European option pricing model and its numerical solution

Results in Applied Mathematics
The Black–Scholes model, a powerful tool for valuation of equity options specially European equity options, is based on assumptions that are violated in some situations due to market realities.
S. Zangoei Zadeh, M. Azizian, M. Sarvari
doaj   +1 more source

The End of DEI

Financial Management, EarlyView.
ABSTRACT Diversity, equity, and inclusion (DEI) is one of the most polarizing issues in business and society. Advocates claim that DEI enhances fairness, while critics argue it undermines meritocracy. The problems often stem from the practice of DEI—reducing it to demographic diversity—rather than its principle.
Alex Edmans
wiley   +1 more source

Fractional Black-Scholes Model and Technical Analysis of Stock Price

Journal of Applied Mathematics, 2013
In the stock market, some popular technical analysis indicators (e.g., Bollinger bands, RSI, ROC, etc.) are widely used to forecast the direction of prices.
Song Xu, Yujiao Yang
doaj   +1 more source