Urban Sociology- The Rise of the Creative Class by Richard Florida

I have to agree with Richard Florida that if you bring in young, 30-40 year olds and middle class your city has more revenue and tends to grow. The young middle educated, which he refers to as the creative class enjoy music, arts, and parks. If, they are educated and middle class they tend to use the parks more. They usually spend more on dancing, outdoor activities, like biking, running and recreational events.