A new study published in the Journal of Experimental Psychology finds that wearing red makes men appear more powerful, more likely to make money and more likely to climb the social ladder. "Red appears to signal rank in virtually all cultures. The researchers point out that China, Japan and sub-Saharan Africa populations have all tied red to prosperity and elevated status. In ancient Rome, the most powerful citizens were called 'the ones who wear red.' Today, we roll out the red carpet for special guests. The meanings tied to red have biological roots, the scientists believe. In non-human primates, such as mandrills and gelada baboons, for example, red indicates male dominance. The color is expressed intensely in alpha males, who get the most mating action."