意大利企业对企业发票数据：一项网络分析
Italian Business-to-Business Invoicing Data: A Network Analysis
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中文总结 AI 辅助
基于意大利电子发票数据构建企业间网络，发现买家卖家数量及中心性呈重尾分布，且下游尾部指数低于上游，揭示生产网络的无标度与重要性集中特征。
中文摘要 AI 辅助
我们基于意大利税务局收集的电子发票全集，对意大利企业对企业商业关系网络进行了全面描述。利用数据中企业间的明细信息，我们刻画了每家企业买家（客户）和卖家（供应商）数量的分布、每家企业在生产网络中的中心性，以及企业之间的平均距离。我们首次刻画了描述意大利生产体系的企业间网络，并展示了其地理和行业细分。分析显示，每家企业买家与卖家数量分布呈现重尾特征，意味着网络具有无标度结构。中心性值的分布同样呈现重尾，表明重要性高度集中于相对少数企业。我们估算了所有这些分布的尾部指数，发现所有情况下下游（买方侧）分布的指数均低于上游（卖方侧）分布的指数。
英文摘要
We present a comprehensive description of the network of Italian Business-to-Business commercial relationships, based on the universe of electronic invoices collected by the Italian Tax Office. The firm-to-firm detail of the data is exploited to describe the distribution of the numbers of buyers (customers) and sellers (suppliers) per firm, the centrality of each firm in the production network, and the average distance between firms. We characterize for the first time the firm-to-firm network describing the Italian production system, and present its geographic and sectoral breakdown. The analysis reveals heavy tailed distributions for the numbers of buyers and sellers per firm, implying a scale-free structure of the network. The distributions of centrality values display heavy tails as well, indicating a strong concentration of importance in a relatively small number of firms. We estimate the tail exponents for all these distributions, finding in all cases lower exponents for downstream (buyer-side) distributions than for the upstream (seller-side) ones.
发表机构
- Bank of Italy（意大利银行）
机构由 AI 辅助整理，请以论文原文为准。
