The key development of the access pricing theory is embodied in three theories: TELRIC/TSLRIC, efficient component pricing rule(ECPR) and global price caps(GPC).

• 接入价格理论的发展主要体现在三个理论之中，即以全部长期增量成本为基础的定价、有效成分定价规则以及整体价格上限法。