A Dynamic Model of Weak and Strong Ties in the Labor Market
构建了一个工人通过强或弱关系找工作的简单模型，发现增加与弱关系相处的时间能提高就业率，且失业工人会更多依赖弱关系。
The study develops a simple model where workers can obtain a job through either their strong or weak ties. It shows that increasing the time spent with weak ties raises the employment rate of workers. It also shows that when the job-destruction rate or the job-information rate increases, workers choose to rely more on their weak ties to find a job. The model is extended so unemployed workers can also learn of a vacancy directly from an employer. Results show that equilibrium employment and time spent with weak ties are sometimes, but not in all cases, positively related.