The early economy of Phoenix was mostly agricultural. It was mostly dependent on cotton and citrus farming. In the last twenty years, the economy has changed as quickly as the number of people has grown. As the state capital of Arizona, many residents in the area are employed by the government. Arizona State University is there. Many high-tech and telecommunications companies have also recently moved to the area. Due to the warm climate in winter, Phoenix benefits greatly from seasonal tourism and recreation, and the golf industry.