After measuring the optimism levels of an insurance sales force, it was determined that the optimistic sales people sold 35 percent more, and identified pessimists were two times more likely to quit in the first year than optimists.
Pärast kindlustusagentide optimismitaseme mõõtmist tehti kindlaks, et optimistlikud müügiinimesed müüsid 35% rohkem ja et pessimistid loobusid optimistidega võrreldes kaks korda tõenäolisemalt oma esimesel tööaastal.