Fig. 3From: Tie-formation process within the communities of the Japanese production network: application of an exponential random graph modelThe probability density functions of the estimated parameters θ for the exogenous attributes. Estimates were obtained for the 100 considered communities at the second level of the hierarchical structure of the Japanese production network. These graphs are used to illustrate the distribution of the results, thereby highlighting the negative, positive and nonsignificant values of Θ. However, these graphs are not used to compare the values of Θ between communities since they have different sizesBack to article page