A guide with examples for learning this key idea in options trading Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive ...

Jason Fernando is a professional investor and writer who enjoys tackling and communicating complex business and financial problems. Gordon Scott has been an active investor and technical analyst or ...

The sea ice changed completely over the course of a few hours, from disconnected floes to a vast, snow-covered plain. By Raymond Zhong Most of the reserves in the country are extra-heavy oil that’s ...

Teething problems are issues that you have when you’re getting used to something new. Learn how to use this expression with Feifei and Phil. Hello and welcome to The English We Speak, where we explain ...

Translational immunology is the process by which researchers use immunological discoveries to develop practical solutions for human problems. Examples include the development of vaccines against ...

If you could save lives by producing vaccines in transgenic bananas, would you? In the debate over large-scale commercialization and use of GMOs, where should we draw the line? Vaccines Tobacco ...