Dungeons and Dragons (D&D) is a Tabletop Role-playing Game, or TTRPG; a collaborative storytelling and board game experience where various dice rolls help to decide how the game and story progress.

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 ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Gordon Scott has been an active investor and ...

PCI compliance helps businesses protect their customers' card data. Many, or all, of the products featured on this page are from our advertising partners who compensate us when you take certain ...