[statnet_help] fragmented bipartite network...

[Harald Waxenecker]

Dear ‘statnet community’,

Our research focuses on tie formation and elite cohesion, specifically examining interlocking directorates and kinship relations. The dependent bipartite business network comprises 6,902 individuals and 5,178 companies, exhibiting sparsity (density = 0.00012) and fragmentation with 4,455 components, including 3,850 isolates in the first mode (persons). The attached documents contain descriptives and the component size distribution from the observed network.

The fragmented structure is important, as other network layers, like kinship relations, are expected to contribute to the cohesion of this business network. We apply ERGM to model these processes, but we struggle to capture the fragmented structure of the observed network. The component size distribution of the simulated network differs significantly. In addition, the goodness-of-fit (GOF) for k-stars (in both modes) and geodesic distances (Inf) shows significant results. All these results are also attached.

We've explored various options, including constraints, MCMC propositions, and simulated annealing, but haven't achieved success. Please, we would like to ask for your help to improve our model. Thank you!

Kind regards,
Harald



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Harald Waxenecker

Masaryk University | Faculty of social studies
Department of Environment Studies
A: Jostova 10 | 602 00 Brno | Czech Republic
E: waxenecker at fss.muni.cz<mailto:waxenecker at fss.muni.cz>

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