The Enduring and Underestimated Reach of Racial Segregation: New Measures and Historical Impacts

This podcast episode features economist Dr. Trevon Logan, who challenges traditional narratives of racial residential segregation in the United States. He introduces a novel, micro-level measure of segregation based on the race of one's next-door neighbor, which allows for a nationwide analysis of segregation over time, including in rural areas. Contrary to the prevailing belief that rural areas were static or less segregated, his research reveals that rural communities were just as segregated as urban areas and experienced increasing segregation from 1880 to 1940, a trend previously attributed solely to urban white flight. This new methodology provides a more granular and conceptually relevant understanding of how racial separation manifests in daily life, moving beyond aggregate census tract measures that often lack personal resonance.

Dr. Logan demonstrates the utility of this new segregation measure by linking it to significant historical outcomes. His research establishes a strong positive correlation between increased rural segregation and the incidence of lynching in the American South, aligning with political theories that view racial violence as a means of reinforcing political structures and white supremacy. He also delves into the Reconstruction era, highlighting the often-overlooked impact of African American political leaders. Challenging the racist assumptions of the Dunning school, his work shows that black politicians significantly influenced public finance, advocating for land reform through tax increases and, most notably, establishing and expanding public education systems in the South, leading to substantial increases in African American literacy.

The discussion further uncovers the long-lasting and insidious effects of historical racial discrimination in other critical areas. Dr. Logan reveals how a seemingly race-neutral Civil War veteran pension system was undermined by racial bias from physicians, leading to disparities in benefits, particularly for subjective medical conditions. He also exposes how an 1869 study, based on flawed assumptions about African Americans' lung capacity, continues to influence modern medical diagnoses for conditions like COPD, requiring physicians to "eyeball" a patient's race and leading to under-diagnosis for black individuals. These examples underscore how policies and assumptions initiated in the late 19th century continue to generate material racial disparities today.

Finally, Dr. Logan emphasizes the broader implications for the field of economics itself. He argues that for economics to achieve its full potential in developing truth, fostering innovation, and reaching the "production possibility frontier," it must embrace inclusivity and diversity. A lack of diverse perspectives means leaving innovative ideas and best practices outside the scope of the profession, ultimately hindering its capacity to solve complex economic problems and understand the full spectrum of human experience and its economic consequences. The episode powerfully illustrates the deep, systemic, and often hidden ways historical racial dynamics continue to shape contemporary society and institutions.

"diagnosing COPD requires one to infer the race of the patient"

"segregation begins almost by design in the founding of the Republic because you have a large and slave population whose living situation is controlled by others"

"rural areas were just as segregated as urban areas and they also experienced increasing segregation over time"

"segregation is a nationwide trend that is not just due to white flight to suburban communities in urban areas it's something that's happening even in rural areas in the United States"

"I do know who my neighbor is I certainly know who my neighbor is... that might be what we actually are thinking about in terms of segregation"

"segregation has a very strong and positive relationship to lynching in the segregation measure or one standard deviation increase in segregation leads to an additional lynching in a particular County"

"it was African American politicians who created the public school system in the south"

"racial discrimination by physicians actually is related to the pensions that African American veterans received even though the pension system itself was a race-neutral system"

"if we are not an inclusive and diverse profession by definition we cannot be at the production possibility frontier we're leaving innovative ideas outside of the scope of economics"