Based on Richard Florida's research, the "Creative Class" is a "series of occupational categories that add economic value through creativity." Florida divides Creative Class occupations into two categories: the Super Creative Core and Creative Professionals. The Super Creative Core comprises occupations highly associated with problem-finding and problem-solving and includes those involved in science, engineering, computers, mathematics, education, the arts, design and entertainment. Creative Professionals work in knowledge-intensive occupations commonly found in high-tech sectors, financial services, business management, health care and legal professions. The Creative Class has received national attention. Florida argues that creativity is the decisive source of a region's competitive advantage in the economy. He notes that "access to creative people is to modern business what access to coal and iron was to steel making." Accordingly, the number of Creative Class occupations in a region is often used as one measure of competitive advantage.