We develop a statistical framework that uses lights growth to augment existing income growth measures, under the assumption that measurement error in using observed light as an indicator of income is uncorrelated with measurement error in national income accounts.

FORBES: Celebrate Earth Hour By Turning the Lights *On*

Remarkably, the nurses and doctors were observed to make an error in just one per cent of these actions but that still amounted to an average of two errors a day with every patient.

NEWYORKER: The Checklist

At Quest International , the England-based conglomerate that is one of the seven large fragrance producers in the world, Turin observed that the creation of new smell molecules was little more than costly trial and error.

FORBES: The scent of money