The Effects of Social Networks on Employment and Inequality
构建了一个模型，其中个体通过社交网络获取工作信息，发现就业存在时间与个体间的正相关，失业持续时间越长找到工作的概率越低，且初始就业劣势的群体退出率更高、就业前景持续更差。
We develop a model where agents obtain information about job opportunities through an explicitly modeled network of social contacts. We show that employment is positively correlated across time and agents. Moreover, unemployment exhibits duration dependence: the probability of obtaining a job decreases in the length of time that an agent has been unemployed. Finally, we examine inequality between two groups. If staying in the labor market is costly and one group starts with a worse employment status, then that group's drop-out rate will be higher and their employment prospects will be persistently below that of the other group.