This is a special, between-the-seasons episode of the New Bazaar.

Right now, the white-to-black wealth ratio in the United States is roughly 6 to 1. Which means that when you add up all the wealth that someone can own—their cash, the value of their house, their investments in the stock market, and so on—the average White American has six times the wealth of the average Black American.

That figure alone should be disturbing enough. But making it even worse is that this wealth ratio of 6 to 1 is about the same as it was back in the 1950s, seven decades ago.

Some of the reasons for this long-term persistence of a big racial wealth gap are probably familiar to anyone who knows even just a little about American history. Not just the history of slavery, but also what came next: Jim Crow and segregation, the numerous racist laws and policies that were passed, and the history of racial violence—all of which made it impossible for Black Americans to accumulate as much wealth, and to get the same return on their wealth, as White Americans.

Maybe less understood is another cause. If you consider the immediate aftermath of emancipation and the Civil War as a starting point, Black Americans simply began with much less wealth from which to build more wealth—and that initial difference has continued to have a big lingering effect even a century and a half later.

These are just some of the conclusions in a new working paper from today’s guest, Ellora Derenoncourt, and from her co-authors Chi Hyun Kim, Moritz Kuhn, Moritz Schularick. Ellora is an economist at Princeton University, where she is also founder of the Program for Research on Inequality. On this episode of New Bazaar, Cardiff speaks with Ellora about this fascinating paper and about some of her other related work.