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 ...

Gordon Scott has been an active investor and technical analyst or 20+ years. He is a Chartered Market Technician (CMT). Amanda Jackson has expertise in personal finance, investing, and social services ...

Conflict theory is an idea presented by Karl Marx that suggests competition for resources keeps people in conflict. Conflict theory offers one explanation for the struggle between socioeconomic groups ...

Random walk theory is a financial model which assumes that the stock market moves in a completely unpredictable way. The hypothesis suggests that the future price of each stock is independent of its ...

Traders and investors are constantly searching for methods to increase earnings, reduce risks, and outperform the market’s average returns. As a result, several theories have been proposed to explain ...