Can People form Links to Efficiently Access Information?
研究人们如何通过形成社交链接来获取信息，发现近视最优反应策略能预测链接行为，但部分人偏好高连接度节点而忽视间接链接，降低了网络效率。
Abstract We investigate how individuals form social connections to access information. In our link formation game of one-way flows, the myopic best response is to link to the node with the highest informational reach, which depends on indirect links. This strategy leads to the efficient circle network. We find that myopic best response predicts the links that subjects form. However, some subjects target high-degree nodes instead, neglecting indirect connections. This reduces network efficiency. We obtain similar findings when subjects link to transfer information to others. Using a minimal group treatment, we also find evidence of in-group homophily in link formation.