Micro-raiyons were nested hierarchically within larger administrative districts, and larger urban zones. The planning of the micro-raiyon included a self-contained neighborhood of about 15,000 people, with educational, cultural, health, and retail services. Within raiyons, per capita norms were devised for services and staff, such as square meters of shopping space, educational, health facilities, and numbers of teachers and medical personnel. During the transition from a centrally planned state to a market economy, the inner contrasts of lifestyles within Moscow raiyons were amplified.