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Tag racial segregation

Confounding Diversity with Segregation Again

In July, I showed that an otherwise careful group of researchers at the Othering and Belonging Institute were using a measure of statistical racial segregation that confounds diversity with segregation. Briefly, regions with more variety in the racial makeup of their neighborhoods will show up as statistically “segregated.” Regions where all neighborhoods are pretty similar will show up as statistically “integrated.” To their credit, the study authors corresponded with me at length and adjusted their Technical Appendix to emphasize limitations that I had pointed out. Today, Mark Zandi, Dante DeAntonio, Kwame Donaldson, and Matt Colyar of Moody’s Analytics released a much less careful study purporting to show the “macroeconomic benefits of racial integration.” But if one were to make the mistake of taking their study at all seriously it would lead one to the opposite conclusion: mostly-white counties do better economically. They discovered white privilege and mislabeled it “integration.” (When economists talk about “segregation” statistically, they mean differences in racial proportions across neighborhoods. This is not the same as the de jure segregation regime imposed in the American South. It’s not even the de facto segregation that persists in some neighborhoods today.) The easiest way to see Zandi et al’s mistake is to work backwards from the table of county results they (helpfully) published. The most integrated county in America, in their analysis, is Kennebec County, Maine. It’s 94.6% white. The rest of the most-integrated counties are similarly pallid – with the exception of Webb County, Texas, which is 95% Hispanic. In each of these counties, integration is a mathematical product of the lack of diversity. With hardly any minorities, hardly any neighborhood can diverge from the dominant group. These extreme counties aren’t an accident. Whereas most researchers treat metropolitan areas together, Zandi’s team worked with counties. Several of their […]

Is Diversity “Segregation”?

Headlines last month proclaimed that “Cities Have Grown More Diverse, And More Segregated, Since the 90s.” The headlines originate in the key findings of a new, detailed study from the Othering and Belonging Institute (OBI) at UC Berkeley. The study leans heavily on a relatively new metric – the Divergence Index – which has impressed many researchers (myself included) with its versatility. But now that we have seen the Divergence Index in action, its versatility clearly comes at a cost: the Divergence Index conflates what we would intuitively call diversity with “segregation.” As a result, more-diverse metro areas are usually ranked as more segregated by the Divergence Index. And as America became far more diverse over the past 30 years, it is logical that the Divergence Index would rise in most metro areas. Why is it so hard to measure segregation? Racial segregation is easy to see. You walk down the street and almost everybody in one neighborhood looks different than you and almost everybody in another neighborhood looks the same as you. The human eye and ear can also distinguish categories that are meaningful in some contexts but not others. Everybody but me in the café where I watched European soccer last week appeared to be not only Black but specifically Ethiopian. Was that café integrated or segregated? I certainly felt welcome as I bantered at the bar with an Ethiopian-American tennis instructor. But statistically, the café was far more Black and vastly more Ethiopian than the D.C. region as a whole. In this context, “segregation” refers to places where one group is overrepresented – like the café – not to the legal regime that imposed second-class citizenship and pervaded every aspect of life for black Americans. Given the word’s loaded history, it would have been wiser for social […]

Is Zoning Popular? Reevaluating the Evidence

New Brunswick, NJ Zoning Map

In my regular discussions of U.S. zoning, I often hear a defense that goes something like this: “You may have concerns about zoning, but it sure is popular with the American people. After all, every state has approved of zoning and virtually every city in the country has implemented zoning.” One of two implications might be drawn from this defense of Euclidean zoning: First, perhaps conventional zoning critics are missing some redeeming benefit that obviates its many costs. Second, like it or not, we live in a democratic country and zoning as it exists today is evidently the will of the people and thus deserves your respect. The first possible interpretation is vague and unsatisfying. The second possible interpretation, however, is what I take to really be at the heart of this defense. After all, Americans love to make “love it or leave it” arguments when they’re in the temporary majority on a policy. But is Euclidean zoning actually popular? The evidence for any kind of mass support for zoning in the early days is surprisingly weak. Despite the revolutionary impact that zoning would have on how cities operate, many cities quietly adopted zoning through administrative means. Occasionally city councils would design and adopt zoning regimes on their own, but often they would simply authorize the local executive to establish and staff a zoning commission. Houston was among the only major U.S. city to put zoning to a public vote—a surefire way to gauge popularity, if it were there—and it was rejected in all five referendums. In the most recent referendum in 1995, low-income and minority residents voted overwhelmingly against zoning. Houston  lacks zoning to this day. Meanwhile, the major proponents of early zoning programs in cities like New York and Chicago were business groups and elite philanthropists. Where votes were […]

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