Big signatures a sure sign your boss is an egomaniac This extravagant doodle belongs to US administrator Jacob Lew, a candidate for the position of Treasury Secretary Source: news.com.au American study analysed 600 plus CEO signatures The bigger the signature, the bigger the egomaniac Of Rudd, Gillard and Abbott, the latter's signature is the largest DO YOU think your boss is a bit of an egomaniac? Does their signature take up half the page? Turns out these facts may be related. A study by a business school at the University of North Carolina has analysed the signatures of more than 600 American CEOs. The study came to a shocking conclusion. The bigger the CEO's signature, the more likely they'll have an extremely high opinion of themselves. If your boss has one of those really wild signatures which runs off the end of the page, there's every chance they'll send your company broke. The authors of the study say that big signatures tend to reveal narcissism, and that narcissists tend to be shocking decision-makers who ignore feedback. In the corporate world, they often buy big stupid assets the company didn't really need, and blow way too much money on research and development. This can lead to corporate collapse and mass job losses Yes, your boss could quite literally be signing your career away. For the record, the CEO with the largest signature in the study was Timothy Koogle, who ran Yahoo from 1995 to 2001. Mr Koogle doesn't appear to have held a meaningful job since then, so you have to wonder whether his huge signature has slowed his career progress. Then again, perhaps it's just his unusual surname which rhymes with "google." Possibly not the best look for a Yahoo boss. Closer to home, the signatures of Prime Minister Julia Gillard and her predecessor Kevin Rudd are both reasonably compact. The man with his eyes on the prize, Tony Abbott, has a bit of an issue with a letter "T" which just doesn't know when to quit. Just sayin. Also: the story behind the crazy doodle signature image in this story