Economics Detective
Economics Detective

The American Civil War with Jeffrey Hummel

Today's guest is Jeffrey Rogers Hummel of San Jose State University. He is the author of Emancipating Slaves, Enslaving Free Men: A History of the American Civil War. This book combines a sweeping narrative of the Civil War with a bold new look at the war's significance for American societ

Featured Speakers

Garrett M. Petersen HostJeffrey Rogers Hummel Guest

Topics Discussed

Episode Summary

Executive Summary: Jeffrey Rogers Hummel argues that slavery was economically harmful overall despite being productive and profitable for slaveholders, and that the Civil War’s significance lies not only in emancipation but also in transforming U.S. politics and state power. He also contends the Confederacy’s centralized war socialism weakened it, and critiques modern “new history of capitalism” narratives for ignoring older scholarship.

Main Topics: Hummel’s background and book formation (Priority: 4/5): He explains how childhood interest in Civil War battle history, graduate training in history and economics, and Milton Friedman’s encouragement led to Emancipating Slaves, Enslaving Free Men, which combines narrative history with economic analysis and extensive bibliographic essays. Slavery as productive but inefficient (Priority: 5/5): Hummel distinguishes profitability/productivity from economic efficiency, arguing slavery created deadweight loss that harmed not only slaves but also many free Southerners; he says output per capita was about one-third lower in the South once the slave population is included. Runaways, manumission, and the decline of slavery (Priority: 5/5): He argues the North could have weakened slavery by becoming a haven for runaways and refusing to enforce fugitive slave laws. Border proximity, manumission, and self-purchase made slavery fragile, especially in upper South states where slavery was already declining. Confederate war socialism and war strategy (Priority: 5/5): Hummel says the Confederacy lost partly because it adopted centralized economic control, forced industrialization, and conscription-backed labor policies, while relying on conventional West Point-style warfare rather than the decentralized guerrilla strategy that helped the American Revolution. Civil War as a turning point in U.S. government growth (Priority: 4/5): He argues the Civil War—not the New Deal—was the major turning point in the expansion of federal and state power, creating precedents for tariffs, internal taxes, railroad subsidies, income taxation, the Department of Agriculture, and higher state taxation. Critique of the new history of capitalism (Priority: 4/5): He strongly criticizes recent works associated with the 1619 Project for overclaiming slavery’s role in modern economic growth and for ignoring extensive prior scholarship and critiques from economic historians.

Key Arguments: Slavery was profitable and productive, but not economically efficient in a welfare sense because it imposed deadweight loss on both enslaved people and parts of the free Southern population. Counting only white Southerners can obscure the economic damage of slavery; including the enslaved population reveals substantially lower per-capita output in the South. Runaway slaves were a serious structural threat to slavery; making the North a refuge and weakening fugitive slave enforcement could have accelerated slavery’s collapse inside a remaining Confederacy. Manumission and self-purchase were important mechanisms for slavery’s decline in many societies, but were unusually restricted in Anglo-American slave states. The Confederacy’s centralized war socialism and conventional-battle strategy made it less adaptable than a more decentralized guerrilla approach might have been. The Civil War created a permanent ratchet in government intervention through tariffs, taxes, subsidies, and administrative expansion. Modern accounts tying capitalism’s rise primarily to slavery and cotton production are, in Hummel’s view, distorted by selective use of evidence and neglect of established scholarship.

Data Points: Year first edition of the book: 1996 - Emancipating Slaves, Enslaving Free Men first published Year second edition/new printing: 2014 - Second edition included a new introduction and updated literature highlights Estimated slave asset value: $2.7–$3.2 billion - Total value of enslaved people in the U.S. at the time of the Civil War Return on slave capital: 8%–12% - Hummel says slaveholders earned roughly the going rate of return, similar to other investments Per-capita output gap: about one-third lower - South’s output per capita versus the North when the slave population is included Runaway slaves per year: about 1,000 - Census-based estimate, which Hummel says understates actual runaways Delaware Black population free: 90% - At the time of the Civil War, most African Americans in Delaware were already free Maryland Black population free: 50% - At the time of the Civil War, about half of African Americans in Maryland were already free Brazil emancipation gap: 4 years - From Ceará’s abolition in 1884 to nationwide abolition in 1888 Age of maturity in Brazilian gradual emancipation law: 21 - Approximate age at which those born after the law would be freed Tariff benchmark: Tariff of 1857 was the lowest up to that time - Used to illustrate prewar low federal intervention in trade policy Government revenue sources before Civil War: 2 - Sale of public lands and tariff duties Slave states in the Union at Lincoln’s inauguration: More slave states inside the Union than outside - Only the Lower South had seceded before Fort Sumter Length of Civil War: 4 years - Used to compare with Brazil’s rapid path to emancipation

Pivotal Quotes: "slavery, in that sense, was inefficient and, in fact, imposed significant negative effects, which economists referred to as deadweight loss, on the southern economy." — Jeffrey Rogers Hummel: Explaining his main disagreement with the view that slavery was economically efficient "the Civil War is the turning point in U.S. history" — Jeffrey Rogers Hummel: Describing his argument that wartime mobilization permanently expanded government power "if the North at the time of the Civil War had been interested in eliminating slavery, rather than preserving the Union, there's a set of policies that it could have adopted" — Jeffrey Rogers Hummel: Introducing his counterfactual claim that anti-slavery policy could have been used instead of total Union preservation

Implications: Listeners should come away seeing slavery as both profitable and socially costly, and the Civil War as a major institutional turning point. The episode also warns against simplistic present-day narratives about capitalism and slavery that ignore prior scholarship.

🔓 Sign Up for Unlimited Episode Search

About Economics Detective

Economics Detective Radio is a podcast about markets, ideas, institutions, and all things related to the field of economics. Episodes consist of long-form interviews and are generally released on Fridays. Topics include economic theory, economic history, the history of thought, money, banking, finance, macroeconomics, public choice, business cycles, health care, education, international trade, and anything else of interest to economists, students, and serious amateurs interested in the scienc...

View all episodes from Economics Detective