Sharpe, a professor emeritus at Stanford, invented the Sharpe Ratio for measuring the risk-adjusted performance of investments.

FORBES: A New Way Of Calculating The Brutal Arithmetic Of Fund Fees

Sharpe, the Stanford finance professor who devised the widely used Sharpe Ratio for measuring investment risk, recently took another looked at actively managed funds.

FORBES: Actively Managed Funds: A Faulty Product?

That led to the widespread use of the Sharpe ratio as a measurement tool.

ECONOMIST: Smooth returns can be a sign of danger for investors