Credit Card Redlining Revisited
重新审视了Cohen-Cole（2011）关于贷款机构根据借款人所在社区的种族构成设定信用卡额度这一发现，指出其变量构建中存在与种族构成高度相关的扭曲，且在控制社区收入后，红线划界的证据消失。
Using a proprietary data set of credit bureau records, Cohen-Cole (2011) finds evidence that lenders are using the racial composition of a borrower's neighborhood to set credit limits on revolving accounts. Using the same credit bureau data, I revisit this work and reach two main findings. First, an undocumented decision in constructing the variables appears to have introduced a distortion that is highly correlated with neighborhood racial composition and appears to increase the size of the reported disparity. Second, when neighborhood income is controlled for, the results presented as evidence of redlining disappear.