Table 5 Estimation results for the three largest communities considered from the second level of the hierarchical structure of the Japanese production network
Attributes | Community 1 | Community 2 | Community 3 | |||
|---|---|---|---|---|---|---|
Endogenous attributes: | Θ MLE | sig. | Θ MLE | sig. | Θ MLE | sig. |
Reciprocity | 2.50 | + | 3.52 | + | 3.31 | + |
Popularity (k-in-stars) | 8.25 | + | 6.23 | + | 7.80 | + |
Activity (k-out-stars) | -1.71 | + | -1.69 | + | -1.45 | + |
k-two-paths | 0.07 | + | 0.08 | − | 0.07 | + |
Cyclic closure (AT-C) | -0.06 | − | 0.39 | + | -0.19 | + |
Path closure (AT-T) | 0.07 | + | 0.07 | − | 0.08 | + |
Activity closure (AT-U) | 0.05 | + | -0.17 | + | 0.05 | + |
Popularity closure (AT-D) | -0.55 | + | -0.87 | + | -0.47 | + |
Exogenous attributes: | Θ MLE | sig. | Θ MLE | sig. | Θ MLE | sig. |
Sector homophily | -0.42 | + | -0.33 | + | 0.41 | + |
Location homophily | 0.65 | + | 1.27 | + | 0.37 | + |
Bank homophily | 1.88 | + | 3.26 | + | 1.92 | + |
Size heterophily | 1.73.10−09 | − | − 4.18.10−08 | − | − 1.56.10−07 | + |
Sales heterophily | 2.58.10−08 | + | 5.27.10−08 | + | 1.56.10−09 | + |
Sales receiver effect | 2.81.10−08 | + | 5.61.10−08 | + | 1.76.10−09 | + |
Sales sender effect | − 6.23.10−09 | + | − 1.86.10−08 | + | − 5.76.10−10 | + |