INNOVATION COMPLEMENTARITY AND SCALE OF PRODUCTION*
提出了一个计量模型，利用企业创新概况检验生产与创新策略间的互补性，并应用于西班牙瓷砖产业，发现产品与工艺创新显著互补，小企业整体创新更强。
We present an econometrically feasible model that uses the information contained in the innovation profile of each firm to test for the existence of complementarity among production and innovation strategies. Our approach is able to distinguish between complementarity and correlation induced by unobserved heterogeneity. We apply the model to analyze the Spanish ceramic tile industry where the adoption of the single firing furnace in the 1980's facilitated the introduction of new product designs as well as opening new ways of organizing production. Our econometric results show that there is significant complementarity between product and process innovation. Small firms tend to be more innovative overall.