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

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Irish and Irish Americans tend to throw around phrases like "Sláinte" and "Top of the morning to ye" - especially on St. Patrick's Day! - but how many of us really know what these beloved Irish ...

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How to Do It is Slate’s sex advice column. Have a question? Send it to Stoya and Rich here. It’s anonymous! This is one of those things I only discovered once I moved in with my boyfriend a couple of ...

Physics is the search for and application of rules that can help us understand and predict the world around us. Central to physics are ideas such as energy, mass, particles and waves. Physics attempts ...