利用1998—2012年长三角16个核心城市的面板数据,测度了生产性服务业集聚及与制造业的耦合程度,并实证探究了生产性服务业集聚及耦合对服务业劳动生产率的动态影响。研究结果表明:高等级城市生产性服务业集聚水平较高,低等级城市生产性服务业耦合度较高;生产性服务业集聚与服务业劳动生产率呈正“U”形关系,部分中高等级城市的生产性服务业集聚水平已越过“拐点”,生产性服务业集聚能够显著提高服务业劳动生产率,低等级城市的生产性服务业耦合促进了服务业劳动生产率的提高。这一结论对于当前长三角地区产业协同发展具有重要的指导意义。
Based on the panel data from 16 core cities in Yangtze River delta from 1998 to 2012, the paper measures the agglomeration level of the productive service industry and its coupling degree with manufacturing industry. Empirical studies are also made on the dynamic impact of productive service industry agglomeration and coupling on the labor productivity of service industry. The results show that high - grade cities have higher productive service industry agglomeration level, while the coupling degree of the manufacturing industry in low level cities is higher. The relationship between productive service industry agglomeration and labor productivity of service industry is an inverted U shape. The agglomeration levels of some medium and high - grade cities have surpassed the "turning point". The agglomeration of productive service industry can significantly improve the labor productivity of service industry while the coupling of productive service industry in low level cities promotes the labor productivity of service industry. The conclusions have important guiding significance for the industrial coordination development at present in Yangtze River delta.