| 来源类型 | Working Paper |
| 规范类型 | 报告 |
| DOI | 10.3386/w29142 |
| 来源ID | Working Paper 29142 |
| Do Lenders Still Discriminate? A Robust Approach for Assessing Differences in Menus | |
| David Hao Zhang; Paul S. Willen | |
| 发表日期 | 2021-08-16 |
| 出版年 | 2021 |
| 语种 | 英语 |
| 摘要 | Motivated by the assessment of racial discrimination in mortgage pricing, we introduce a new methodology for comparing the menus of options borrowers face based on their choices. First, we show how standard regression-based approaches for assessing discrimination in the menus context can lead to misleading and contradictory results. Second, we propose a new methodology that is robust these problems based on relatively weak economic assumptions. More specifically, we use pairwise dominance relationships in choices supplemented by restrictions on the range of plausible menus to define (1) a test statistic for equality in menus and (2) a difference in menus (DIM) metric for assessing whether one group of borrowers would prefer to switch to another group's menus. Our statistics are robust to arbitrary heterogeneity in borrower preferences across racial groups, are sharp in terms of identification, and can be efficiently computed using Optimal Transport methods. Third, we devise a new approach for inference on the value of Optimal Transport problems based on directional differentiation. Fourth, we use our methodology to estimate mortgage pricing differentials by race on a novel data set linking 2018--2019 Home Mortgage Disclosure Act (HMDA) data to Optimal Blue rate locks. We find robust evidence for mortgage pricing differentials by race, particularly among Conforming mortgage borrowers who are relatively creditworthy. |
| 主题 | Econometrics ; Estimation Methods ; Financial Economics ; Financial Institutions |
| URL | https://www.nber.org/papers/w29142 |
| 来源智库 | National Bureau of Economic Research (United States) |
| 引用统计 | |
| 资源类型 | 智库出版物 |
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/586816 |
| 推荐引用方式 GB/T 7714 | David Hao Zhang,Paul S. Willen. Do Lenders Still Discriminate? A Robust Approach for Assessing Differences in Menus. 2021. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 资源类型 | 版本类型 | 开放类型 | 使用许可 | ||
| w29142.pdf（638KB） | 智库出版物 | 限制开放 | CC BY-NC-SA | 浏览 | ||
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
