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 ...

Example of a descriptive “thesis”: “In Common Sense, Thomas Paine presented his views on why the American colonists should break with Great Britain.” *Note: No one would ever disagree with this ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Robert Kelly is managing director of XTS ...