关键词: 企业创新, 产品创新, 城市规模

Abstract:

It introduces the concept of Schumpeter’s innovation into the analysis framework of spatial economics. It establishes the model of urban economic development using the innovation of intermediate products, and focuses on the relationship between the success rate of enterprise innovation and the city scale. It also carries on the quantitative analysis by using the data of China's industrial firms from 1998 to 2007. It finds that there is an inverted U relationship between the success rate of enterprise innovation and the city, weather using the absolute size model, the relative size model, or the market size measured by GDP. It is therefore necessary to prevent the loss of the efficiency caused by the excessive or too small size of the cities. At the same time, the improvement of the quality of human capital has a positive effect on the success rate of the product innovation, as well as the improvement of the infrastructure, while high housing prices have a negative effect.

Key words: enterprise innovation, product innovation；city scale