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EPJ Data Science
Figure 3 | EPJ Data Science

Figure 3

From: Corporate payments networks and credit risk rating

Figure 3

Distribution of ratings for nodes at distance k from a node with rating L. The dashed lines are the unconditional (null) distribution of ratings among nodes in the entire sample. A full marker indicates that the over or under representation with respect to the null distribution is statistically significant in the hypergeometric test at 1% significance level with Bonferroni correction

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