US advertising spending grew tenfold between 1918 and 1930, birthing a global industry

Evidence

In the immediate aftermath of the war, from 1918 to 1920, with advertising redeemed in the public eye and private consumption once again rising, American and European business began to spend wildly on advertising, doubling industry revenue in just two years. By 1930, that spending had increased by a factor of ten; and in the process a truly international industry was born, as the profits and powers derived from using access to the public mind became clear, once and for all. — Tim Wu, The Attention Merchants, 177

Categorization

• XREF: connects to: American ad spending grew roughly fortyfold between 1914 and 1929. — Tim Wu, The Attention Merchants, 245; Advertising techniques originated in the 1800s but matured institutionally in the 1920s — Tim Wu, The Attention Merchants, 1219; Early twentieth-century advertising moved from persuasion to brand loyalty and conversion — Tim Wu, The Attention Merchants, 204

Broader Connections

• American ad spending grew roughly fortyfold between 1914 and 1929. #corroborates (0.85) — Tim Wu, The Attention Merchants, 245
• Advertising techniques originated in the 1800s but matured institutionally in the 1920s #expands (0.75) — Tim Wu, The Attention Merchants, 1219
• Early twentieth-century advertising moved from persuasion to brand loyalty and conversion #qualifies (0.70) — Tim Wu, The Attention Merchants, 204