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文献来源 boardroom centrality degree centrality (DEGREE), which is the number of direct ties a director has with other directors in the network. The more connections the director holds, the more central this director is in the network. eigenvector centrality (EIGENVECTOR), which is a proxy of the information benefit of a director in the network. It represents the extent to which a director is connected with other directors who are connected themselves well. closeness centrality (CLOSENESS), which is the shortest paths between directors (i.e., average distance between a director and outside directors in the network). It indicates how efficiently a director can obtain information from other directors in the network. betweenness centrality (BETWEENNESS), which indicates how much control a director could have on the flow of information, because a director located between other directors of the network can either interrupt or facilitate the information flow between those director
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