市场竞争的加剧，是９０年代以来中国产业组织和市场结构变化的显著特点之一。不仅中小型企业间竞争激烈，而且大公司、大集团的市场垄断势力明显减弱。属于一般竞争性行业的建筑业，在“扩大内需，保持投资较快增长”的政策拉动下，队伍迅速膨胀，生产能力过剩的矛盾更加突出 The intensification of market competition is one of the prominent features of the changes in China’s industrial organization and market structure since the 1990s. Not only is the competition between small and medium-sized enterprises fierce, but the market monopoly power of big companies and big groups has been significantly weakened. The construction industry that belongs to the general competitive industry, driven by the policy of “expanding domestic demand and maintaining rapid investment growth”, the team has expanded rapidly, and the contradiction of excess production capacity has become even more prominent.