实际上，该地区在沿海相对落后的主要原因在于市场发育的迟缓：一是核心城市的市场带动作用不强，……；二是区域间要素流动不畅，本地区内部的资金、人才等要素流动明显滞后。
Indeed, its falling behind other coastal areas is mainly due to its immature development of the market. On the one hand the driving force of the market of core cities are not strong enough. On the other hand elements such as capital and human resource are not actively exchanged.