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 ...

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Confidence in one's value as a human being is a precious psychological resource and generally a highly positive factor in life; it is correlated with achievement, good relationships, and satisfaction.

♦ UPDATE: Learn about companies that are applying this timeless advice today. A version of this article appeared in the July–August 2008 issue of Harvard Business Review. James L. Heskett is a Baker ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Samantha (Sam) Silberstein, CFP®, CSLP®, EA, is an experienced financial consultant. She has ...

Healthcare stocks represent companies in a growing sector, crucial as global spending is high. Top firms like UnitedHealth and Vertex Pharmaceuticals lead in market stability and innovation.