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  • Journal Of Social Structure

 

research-article | 30-November-2019

A Longitudinal Network Analysis of the German Knowledge Economy from 2009 to 2019: Spatio-Temporal Dynamics at the City–Firm Nexus

calculated separately for the two time points by dividing the number of existing links between firms and cities by the number of theoretically possible links. In order to make sure that our data are suitable for stochastic actor-oriented models, we calculate a measurement of similarity between the successively observed networks. This measure is called the Jaccard index and is calculated as: N11N01+N10+N11, where N11 is the number of existing ties that remain unchanged from one point in time to the next

Silke Zöllner, Stefan Lüthi, Alain Thierstein

Journal of Social Structure, Volume 21 , ISSUE 1, 107–133

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