The Bohai Economic Rim (BER) or Bohai Bay Economic Rim is the economic hinterland surrounding Beijing and Tianjin. It also includes areas in Hebei, Liaoning and Shandong which surrounds the Bohai Sea. This region has gone through major changes in economic and infrastructures. This emerging region is rising as a Northern economic power house and rivals the Pearl River Delta in the south and the Yangtze River Delta in the east.