Social Interaction Effects in Disability Pension Participation: Evidence from Plant Downsizing*
利用挪威工厂裁员事件作为工具变量，估计了邻居中残疾养老金参与率对老年人后续四年进入率的影响，发现每增加1个百分点，进入率约上升0.4个百分点。
Abstract We estimate the magnitude of social interaction effects in disability pension participation among older workers in Norway. The problem of omitted variable bias is addressed using the exposure of an individual's neighbors to plant‐downsizing events as an instrument for the disability entry rate among the individual's previously employed neighbors. Our instrumental variable (IV) estimates suggest that an increase of one percentage point in the participation rate of previously employed neighbors increased the subsequent four‐year entry rate of older workers by about 0.4 percentage points. Numerous robustness and specification tests appear to support the validity of the identifying assumption in our IV strategy.