Optimists do better over the course of their careers as well. They make more money and are more likely to be promoted. ... One study found that while most successful entrepreneurs will call themselves optimists, optimistic entrepreneurs earn 30% less than pessimistic ones on average.

Are pessimists more successful?

They found that pessimists - those whose forecasts did not match their realisations - earned 30 per cent more than optimists.

Why are optimists more successful?

The psychology expert says that optimistic people are more likely to invest, act and put effort into achieving whatever it is that they want to get done. “High optimism will predict high effort and success,” she says. Ben Goldhirsh, CEO of Good Worldwide, reiterates the importance of optimism in accomplishing goals.