Are you more like Howard Schultz of Starbucks, the billionaire investor Warren Buffett, Richard Branson of Virgin, or Tony Hsieh of Zappos? Knowing the answer could help you become more successful in your business.

Being aware of how your brain works can help you make better decisions as an entrepreneur, contend the authors of a new book, Heart, Smarts, Guts and Luck (Harvard Business Review Press, 2012). Business veterans Tony Tjan, Dick Harrington, and Tsun-yan Hsieh interviewed and researched more than 500 business leaders from young, upstart entrepreneurs to experienced CEOs and identified four character traits that define a business leaders' decision-making process.

Here is a rundown of the four categories of entrepreneurs they found and the leaders that exemplify them:

Read the whole story at Entrepreneur