This article presents an analysis of the determinants of connectivity change in the world city network (WCN). Drawing on the theoretical research of Saskia Sassen and the subsequent empirical research of the Globalization and World Cities (GaWC) group, connectivity in the WCN is measured through the networked location strategies of globalised service firms. Based on a calculation of the total connectivity of 220 cities across the world for 2000 and 2004, a measurement of connectivity change is produced for this time-period. This measure of connectivity change is then used as the dependent variable in a linear regression model through which are tested a number of hypotheses concerning the determinants of connectivity change. The study analyses WCN change both in general and in sectoral terms, and also examines how the prior presence of service firms impacts connectivity change.
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