The Fair Lending Model: How the Longest-Running Algorithmic Fairness Programs Work in Practice

• URL: http://arxiv.org/abs/2606.02957v2
• Date: Wed, 03 Jun 2026 21:28:02 GMT
• Title: The Fair Lending Model: How the Longest-Running Algorithmic Fairness Programs Work in Practice
• Abstract summary: U.S. financial institutions subject to fair lending laws have been running algorithmic fairness programs for decades.<n>We offer the first empirical account of how financial institutions test for and mitigate algorithmic discrimination on the ground.
• Score: 6.14052818127501
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: U.S. financial institutions subject to fair lending laws have been running algorithmic fairness programs for decades. Despite this long history, remarkably little is known about how these requirements operate in practice. In this paper, we offer the first empirical account of how financial institutions test for and mitigate algorithmic discrimination on the ground. In doing so, we shed light on how the regulatory design of fair lending law and regulation have shaped the policies, processes, and practices of fair lending programs. Drawing on 35 semi-structured interviews with participants across the fair lending ecosystem, we find that while financial institutions have a floor of fairness practices aimed at preventing discrimination in lending largely absent in other domains, the specifics of how firms test for discrimination and search for less discriminatory algorithms varies widely. We also find that regulatory supervision via fair lending examinations has been the key driver of compliance work, but that the practical impact of fair lending programs often depends on how well they can navigate competing business incentives, perceived legal tensions, and regulatory uncertainty. Ultimately, our findings highlight the unique role that supervisory authority has played in successfully fostering fair lending practices -- a regulatory design feature that is distinct from other areas of civil rights law and almost completely absent from recent policy proposals for dealing with algorithmic discrimination.

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