Local Academic Knowledge Transfers and the Concentration of Economic Activity
研究了集聚效应对大学向高科技创新的本地知识转移强度的影响，发现高科技就业集中度是促进转移的最重要因素，且需达到集聚的“临界质量”才能产生显著经济效果。
In this paper I examine agglomeration effects on the intensity of local knowledge transfers from universities to high technology innovations within the modified Griliches‐Jaffe knowledge production function framework. Estimations are carried out at the level of U.S. metropolitan areas. Concentration of high technology employment turns out to be the most important factor promoting local academic knowledge transfers. I find that a “critical mass” of agglomeration must be reached in order to expect substantial local economic effects of academic research spending.