Large language models (LLMs) have impressed us with their ability to break down complex problems step by step. When we ask ...

A pattern day trader (PDT) is a regulatory designation for traders who execute four or more day trades over a five-business-day period in a margin account.

The diffusion of innovations theory describes a technique some companies use to develop a marketing strategy for new products and market share. These five steps apply.

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Charles Robinson has been a senior writer for Yahoo Sports since 2004, specializing in NFL and investigative reporting. Follow him on Twitter @CharlesRobinson.