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person1892–1932

Sam Insull

Disciplines:
chicago
electronics/electricity
utilitarianism/utilities
business/holding companies

Summary

American utilities entrepreneur who was Thomas Edison's personal secretary — and who built Chicago's electricity system and one of the largest utility holding company empires in America — before his empire collapsed in the 1932 Great Depression, becoming one of the great cautionary tales of leveraged holding companies.

Core Contribution

Electrified Chicago and much of the Midwest through the insight that electricity was a natural monopoly requiring enormous scale — his utility empire proved the thesis — while the holding company collapse demonstrated how leverage amplifies both upside and downside at scale.

Historical Influences

Thomas Edison

Intellectual Lineage

London EnglandThomas Edison Chicago Edison

Contemporaries & Peers

Thomas Edison George Westinghouse

Minds Influenced

American utility industryHolding company regulationNew Deal utility reform

Intellectual Posterity

Chicago electricity systemInsull utility empireInsull holding company collapsePublic Utility Holding Company Act 1935

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