Tsallis entropy for cross-shareholding network configurations
In this work, we develop the Tsallis entropy approach for examining the 1
cross-shareholding network of companies traded on the Italian stock market. In such a network, 2
the nodes represent the companies, and the links represent the ownership. Within this context, we 3
introduce the out-degree of the nodes – which represents the diversification – and the in-degree 4
of them – capturing the integration. Diversification and integration allow a clear description 5
of the industrial structure formed by the considered companies. The stochastic dependence of 6