Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Dr. JeFreda R. Brown is a financial ...

Mark Cussen, CMFC, has 13+ years of experience as a writer and provides financial education to military service members and the public. Mark is an expert in investing, economics, and market news.

On Wall Street, copper has the nickname Dr. Copper, as if it had an advanced economics degree and could predict where the economy is going. That's because copper is used in a wide variety of goods ...