Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Thomas J. Brock is a CFA and CPA with more ...

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 ...

While SIMPLE IRAs are in some ways similar to their cousins, traditional and Roth IRAs, they also share some features with workplace retirement plans such as 401(k)s. Understanding your plan's rules ...

In a quiet corner of an ancient riverbed on Mars, a speckled rock has pushed the search for extraterrestrial life into its ...

The first study from GreenDrill—a project co-led by the University at Buffalo to collect rocks and sediment buried beneath the Greenland Ice Sheet—has found that the Prudhoe Dome ice cap was ...

The work our students create can be seen in TV shows, films, commercials, and video games. This is where you belong if you are interested in the animated films of Pixar, Disney, Dreamworks, and Sony ...

Eeny, meeny, miny, mo, catch a tiger by the toe – so the rhyme goes. But even children know that counting-out rhymes like this are no help at making a truly random choice. Perhaps you remember when ...