Phoenix Sister Cities exists to create people-to-people relationships between the residents of Phoenix and its sister cities through commercial, educational, cultural and artistic exchange programs and events that create and sustain global, long-term, international partnerships and business opportunities for the citizens of Phoenix. At the heart of all Sister City programs is an agreement, signed by the mayors of each Sister City, confirming the commitment of each community to the Sister City program. Sister Cities agree to send and receive delegations of various types, including political and business leaders, arts and cultural representatives, educators, and technical experts because these exchanges promote cross-cultural understanding, municipal and technical cooperation, and business opportunities. Each Sister City is supported by a committee of volunteers who are committed to the goals and objectives of the program.