Walter Scheidel · 2017

The Great Leveler

Violence and the History of Inequality from the Stone Age to the Twenty-First Century

Rough AI truth score

67/100

Scheidel documents an important and grim pattern: major wars, revolutions, collapses, and pandemics have often compressed income or wealth distributions through destruction, mortality, expropriation, taxation, and bargaining shifts. The exclusivity claim is too strong. Effects differ by inequality measure and group, violence can worsen deprivation, and peaceful globalization, policy, organization, and growth have reduced some inequalities.

Based on three central claims · high confidence

The three claims

01Mostly supported

Mass-mobilization war, transformative revolution, state collapse, and severe pandemics have repeatedly reduced income or wealth inequality.

World wars, communist revolutions, Black Death episodes, and some collapses show substantial compression in documented distributions. Historical data are sparse and uneven, outcomes vary across places and groups, and the same shock can reduce one inequality measure while increasing poverty, mortality, dispossession, or between-group inequality.

AEA Review of The Great Leveler Historical Effects of Shocks on Inequality

02Mostly supported

Violent shocks level through capital destruction, mortality, labor scarcity, expropriation, taxation, and institutional change.

The proposed mechanisms are historically documented: plague can raise labor bargaining power, war can destroy capital and induce progressive taxation, and revolution can expropriate elites. Their size, persistence, and incidence depend on institutions, recovery, migration, policy, and whose losses are counted.

Historical Effects of Shocks on Inequality Inequality Reduction Between Tragedy and Progress

03Mixed

Large and durable reductions in inequality have historically occurred only through these violent Four Horsemen.

Violent episodes account for many of the largest within-country compressions in premodern and twentieth-century records. Peaceful policy, labor organization, democratization, education, migration, trade, technological diffusion, and rapid growth have also reduced net, global, group, or absolute inequalities, making the answer sensitive to metric, scale, and period.

AEA Review of The Great Leveler Inequality Reduction Between Tragedy and Progress

Other claims worth checking

Premodern growth often increased extractable surplus and elite concentration.
Postwar leveling depended on institutions created during mass mobilization as well as direct destruction.

What this number means. It is an AI-generated first-pass judgment of three central factual or causal claims—not a rating, exhaustive fact-check, or human peer review. Claim credits are 100% for supported, 75% for mostly supported, 50% for mixed, and 25% for weak, then averaged and rounded. Lower confidence means the score should move more as better evidence arrives.

Method three-central-claims/0.1.0 · checked 2026-09-01 · 3/3 selected claims assessed · method and source audit