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. Robert Kelly is managing director of XTS ...

401(k) is a type of defined contribution plan with varying contribution limits based on age. Employers may match 401(k) contributions; withdrawals before age 59 1/2 can incur penalties. Other defined ...

We list the best Linux server distros, to make it simple and easy to choose what you need for your hosting. Usually bundled along with Apache, MySQL, and PHP - and frequently referred to as a LAMP ...