The point of departure of Larsen's criticism is that the application of the whole counting method constitutes a 'problem of non-additivity'. This problem applies to the attribution of papers to unique institutions in address fields in bibliographic records representing Swedish research published during the period 1998-2006. The objective of this research was to visualize the regional publications structure and to provide a regional research profile based on national baselines. The points of criticism in Larsen's paper are reviewed in the same order as they appear in his critique.