Spatial ICT Clusters in Sweden: An Empirical Method to Identify a Necessary Condition for Existence

The authors examine the spatial clustering of ICT industries in Swedish functional regions and changes in the patterns of clustering during the 1990-2001 period. The author also compares the development of the ICT sector in regions with ICT clusters with the development of the ICT sector in regions specialized in large scale ICT production
and in regions specialized in small scale ICT entrepreneurship.