Network structure of production

作者：Atalay Enghin; Hortacsu Ali^*; Roberts James; Syverson Chad

来源：Proceedings of the National Academy of Sciences, 2011, 108(13): 5199-5202.

DOI：10.1073/pnas.1015564108

• industrial organization
• network dynamics

Complex social networks have received increasing attention from researchers. Recent work has focused on mechanisms that produce scale-free networks. We theoretically and empirically characterize the buyer-supplier network of the US economy and find that purely scale-free models have trouble matching key attributes of the network. We construct an alternative model that incorporates realistic features of firms' buyer-supplier relationships and estimate the model's parameters using microdata on firms' self-reported customers. This alternative framework is better able to match the attributes of the actual economic network and aids in further understanding several important economic phenomena.

• 出版日期2011-3-29