Distance-based agglomeration externalities and neighbouring firms’ characteristics
研究了意大利制造业中，不同特征的企业产生本地外部性的能力差异，发现考虑邻近企业特征后，正向本地化经济随距离增加，而多样化力量在短距离内对生产率增长有负效应。
This paper tests the hypothesis that firms with different characteristics can differ in their capability to produce local externalities by investigating the relationship between firm-specific distance-based weighted agglomeration measures and firms’ short-run productivity growth in the Italian manufacturing industry. The results suggest that positive localization economies increase with distance when neighbouring firms’ characteristics are accounted for. Diversification-type forces have negative effects on productivity growth at short distances, while there are positive effects at longer distances regardless of the weighting scheme considered. Moreover, the negative effect of inter-industry externalities seems to persist over distance when neighbouring firms’ characteristics are accounted for.