by Dish Staff
Stephen Mihm studies it at length:
In 2002, two economic historians, Stanley Engerman and Kenneth Sokoloff, published an influential paper that tried to answer a vexing question: why are some countries in the Americas defined by far more extreme and enduring levels of inequality—and by extension, limited social mobility and economic underdevelopment—than others? The answer, they argued, lay in the earliest history of each country’s settlement. The political and social institutions put in place then tended to perpetuate the status quo. …
Harvard economist Nathan Nunn offered a more detailed statistical analysis of this “Engerman-Sokoloff hypothesis” in a paper first published in 2008. His research confirmed that early slave use in the Americas was correlated with poor long-term growth. More specifically, he examined county-level data on slavery and inequality in the United States, and found a robust correlation between past reliance on slave labor and both economic underdevelopment and contemporary inequality. He disagreed with Engerman and Sokoloff’s claim that it was only large-scale plantation slavery that generated these effects; rather, he found, any kind of slavery seemed to have begotten long-term economic woes.
Nunn also offered a more precise explanation for present-day troubles.
In Engerman and Sokoloff’s narrative, slavery led to inequality, which led to economic underdevelopment. But when Nunn examined levels of inequality in 1860—as measured by holdings of land—these proved a poor predictor of future problems. Only the presence of slavery was a harbinger of problems. “It is not economic inequality that caused the subsequent development of poor institutions,” wrote Nunn. “Rather, it was slavery itself.”
This finding was echoed in a study by Brazilian economists Rodrigo Soares, Juliano Assunção, and Tomás Goulart published in the Journal of Comparative Economics in 2012. Soares and his colleagues examined the connection between historical slavery and contemporary inequality in a number of countries, largely in Latin America. The authors found a consistent correlation between the existence—and intensity—of slavery in the past and contemporary inequality. Moreover, this relationship was independent of the number of people of African descent living there today. As Soares said in an interview, “Societies that used more slavery are not more unequal simply because they have relatively more black people.”
The question, then, is how exactly did slavery have this effect on contemporary inequality? Soares and his colleagues speculated that limited political rights for slaves and their descendants played a role, as did negligible access to credit and capital. Racial discrimination, too, would have played a part, though this would not explain why whites born in former slaveholding regions might find themselves subject to higher levels of inequality. Nunn, though, advanced an additional explanation, pointing to an idea advanced by Stanford economic historian Gavin Wright in 2006.
In lands turned over to slavery, Wright had observed, there was little incentive to provide so-called public goods—schools, libraries, and other institutions—that attract migrants. In the North, by contrast, the need to attract and retain free labor in areas resulted in a far greater investment in public goods—institutions that would, over the succeeding decades, offer far greater opportunities for social mobility and lay the foundation for sustained, superior economic growth.
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