Stochastic volatility is the unpredictable nature of asset price volatility over time. It's a flexible alternative to the Black Scholes' constant volatility assumption.

Discover how the Bureau of Economic Analysis influences U.S. economic policy with vital reports on GDP, trade, and more, ...

The study presents data on the possible connection of respiratory pathologies like pneumonia in a cohort of dolphins with altered composition and concomitant perturbed biophysical properties of ...

A financial “security” is nothing more than a claim on some stream of cash flows that investors expect to be delivered into ...

The interstellar object 3I/ATLAS has turned a routine comet flyby into a genuine scientific puzzle, thanks to a remarkably ...

In a Columbia University laboratory in New York, physicist Sebastian Will and his team have reached one of ultracold physics’ ...

Up, Urban Residents, Psychological Shock, Value Reconstruction, Social Transformation Share and Cite: Dan, Y.Y. (2025) Psychological Shock and Value Reconstruction of Urban Residents in Early Reform ...

Tian, Y. (2025) Artificial Intelligence Acceptance of High School English Teachers and Its Influencing Factors —Mixed Research Based on the UNESCO Framework for Teachers’ AI Competence. Open Journal ...

The Harry S. Truman Scholarship Program provides up to $30,000 each for college students who plan to attend graduate school and then engage in public service. The program, which is publicly funded and ...

A new mathematical equation describes the distribution of different fragment sizes when an object breaks. Remarkably, the distribution is the same for everything from bubbles to spaghetti. When you ...

Mr. Means, who co-founded a wellness company, has emerged as one of the most prominent voices in the Make America Healthy Again movement. By Dani Blum Calley Means, a health care entrepreneur and key ...

Mr. Means quietly departed his federal role about a month ago. His sister has been nominated for surgeon general. By Benjamin Mueller Calley Means, an influential adviser to Health Secretary Robert F.