 Adding psychological profiles to his previous work, Florida was able to find strong connections between the Big Five personality traits and regions in the United States. For example, neuroticism is concentrated in the New York metropolitan area and the ChiPitts area, agreeableness and conscientiousness in the eastern Sunbelt area, extraversion in the Chicago metropolitan area, the St. Louis / Nashville / Atlanta area, and the South Florida area. Openness seems to be concentrated in the BosWash and the San Francisco Bay Area. Florida explains the results by linking the dominant forms of employment in the areas with the personality traits: manufacturing regions require people who are agreeable (i.e., they follow rules) and conscientious (they work with dangerous machinery), areas with high immigrant populations require that their residents exhibit openness, and management and sales-related jobs need workers with extroversion. Florida was also able to find that his "Gay and Bohemian Index", which connects gay and artistic communities to high growth and wealth generation areas, is a proxy for regions with large concentrations of the openness personality trait.
