There is substantial empirical evidence that innovation is geographically concentrated. Unlike what is generally assumed, however, it is not clear that localised knowledge spillovers provide a theoretically valid explanation for this. Studying spillovers of cost-reducing technology between...

There is substantial empirical evidence that innovation is geographically concentrated. Unlike what is generally assumed, however, it is not clear that localised knowledge spillovers provide a theoretically valid explanation for this. Studying spillovers of cost-reducing technology between...

‘‘Industrial symbiosis’’ (IS) is a central concept in the industrial ecology literature, which describes geographically proximate interfirm relationships involving the exchange of residual materials, water, and energy. Despite its obvious relevance to regional science,...