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. Erika Rasure is globally-recognized as a ...

A version of this article appeared in the May 2013 issue of Harvard Business Review. Robert G. Eccles is a visiting professor of management practice at Saïd Business School, Oxford University, and the ...

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