Bohemians, Gays, And The 'Creative Class'

"According to [American professor Richard Florida] British cities that want to prosper need a happening music scene, tax breaks for bohemians and thriving gay and ethnic communities...Florida's thesis is based on what he calls the 'creative class' - computer engineers, entrepreneurs, and scientists...Florida has developed a 'bohemian index' and 'gay index'. Using census information, they measure the presence of both groups within any given city.