This compilation of papers from a researchproject funded by the German Ministry provides a political perspective andunifying concept of how local industrial clusters can be strengthenedbypolicy measures.The chapters in Part I cover theoretical approaches, thechapters in Part II present case...

It has long been argued that geographic co-location supports knowledge spillovers. More recently, this argument has been challenged by showing that knowledge spillovers mainly flow through social networks, which may or may not be localized at various geographic scales. We further scrutinize the...