The phrase ‘other people’s money’ derives from Louis Brandeis’s 1914 critique of banking

Evidence

Fittingly, considering the U-shaped financial history previously discussed, the source of this phrase is likely Louis Brandeis’s influential book from 1914, Other People’s Money and How the Bankers Use It, a critical analysis of banking, monopoly, and the “financial oligarchy.” — Andrew deWaard, Derivative Media, 238

Categorization

• XREF: Echoes the earlier U-shaped financial history of American finance in this book.