An Examination of the Geography of Innovation
研究了制造业产品创新的空间分布模式，提出创新受大学研发、工业研发、相关产业和专业化商业服务集聚影响的模型，实证发现地理溢出效应的重要性。
This research examines spatial patterns of manufacturing product innovation and provides a model of factors contributing to geographic concentration of innovation. The model maintains that innovation is related to concentrations of innovative inputs, including: university R&D, industrial R&D, the presence of related industry and the presence of specialized business services. Empirical estimation reveals evidence of the importance of geographically mediated spillovers.