Does Credit Scoring Produce a Disparate Impact?
研究信用评分在抵押贷款和消费者信贷中是否对少数族裔造成不公平，利用全国代表性数据发现无种族或性别差别影响，但年龄有有限差别影响。
The widespread use of credit scoring in the underwriting and pricing of mortgage and consumer credit has raised concerns that the use of these scores may unfairly disadvantage minority populations. A specific concern has been that the independent variables that comprise these models may have a disparate impact on these demographic groups. By “disparate impact” we mean that a variable's predictive power might arise not from its ability to predict future performance within any demographic group, but rather from acting as a surrogate for group membership. Using a unique source of data that combines a nationally representative sample of credit bureau records with demographic information from the Social Security Administration and a demographic information company, we examine the extent to which credit history scores may have such a disparate impact. Our examination yields no evidence of disparate impact by race (or ethnicity) or gender. However, we do find evidence of some limited disparate impact by age, in which the use of variables related to an individual's length of credit history appear to lower the credit scores of older individuals and increase them for the young.