Calling from the outside: The role of networks in residential mobility
利用匿名手机数据，研究发现社交网络影响居住迁移：本地联系人少的人更可能搬家，且倾向于搬到已有熟人较多的区域；联系人提供信息和减少摩擦，尤其对刚搬家者和核心联系人影响更大。
Using anonymised cellphone data, we study how social networks shape residential mobility decisions. Individuals with few local contacts are more likely to change residence. Movers strongly prefer neighbourhoods where they already know more people nearby. Contacts matter because proximity to them is valuable and makes attractive locations more enjoyable. They also provide hard-to-find local information and reduce frictions, especially in home-search. Effects are not driven by similar people being more likely to be friends and move between certain locations. Recently-moved and more central contacts are particularly influential. With age, proximity to family gains importance over friends.