Arnaldo Camuffo, Alessandro Cordova, Alfonso Gambardella, 06 January 2018

Entrepreneurs often predict future revenues using rules of thumb. The column argues that by testing precise hypotheses, 'scientist-entrepreneurs' would be less likely to invest in failures. A randomised controlled trial among Italian start-ups showed that this technique increased average returns for entrepreneurs. Used more generally, the precision effect may help screen out bad business ideas at an early stage.

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