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采用贝恩的市场结构分类法,对宁德地区养殖产地的市场结构类型、产业市场集中度和产业进入壁垒进行了分析,确定了宁德地区大黄鱼养殖产业的市场结构。研究结果表明:宁德农户养殖的市场集中度指标CR4约为0.87%,市场集中程度很低,处于Ⅵ原子型——不存在集中现象;20余家较大规模养殖企业的CR4约为12.55%,也为Ⅵ原子型;市场竞争性强,接近完全竞争市场;产业进入壁垒较低。得出的基本结论是:产地市场的养殖产业内部集中度较低(Ⅵ原子型),应提高产业内部的集中度;竞争性强,接近完全竞争市场,应控制过度竞争以提高环境资源的配置效率;进入壁垒弱是导致集中度低和完全竞争市场结构的主要原因。
Using Bain’s classification of market structure, this paper analyzes the market structure types, industrial market concentration and industrial barriers to entry of Ningde area, and determines the market structure of the large yellow croaker farming industry in Ningde. The results showed that the market concentration index CR4 of Ningde farmer was about 0.87%, the market concentration was very low, it was in Ⅵ atom type - there was no concentration; the CR4 of more than 20 large-scale farms was about 12.55% But also Ⅵ atomic type; strong market competition, close to completely competitive market; low barriers to entry into the industry. The basic conclusion drawn is that the internal concentration of aquaculture industry in origin market is relatively low (Ⅵ atom type), and the concentration within the industry should be increased; the competition is strong and the market is close to perfect competition, over-competition should be controlled to improve the allocation of environmental resources Efficiency; weak barriers to entry are the main reasons for the low degree of concentration and the perfectly competitive market structure.