"Imagine if advertising spending really did rise to 1.8% of GDP in America by 2027. Most firms’ costs would have to rise, cutting total corporate profits (excluding those of ad platforms) from about 6.5% to 5.7% of GDP, the kind of drop normally associated with a recession. Alternatively, imagine if the firms in the S&P 500 index (excluding ad platforms) bore all the additional cost of the advertising boom. Their combined return on capital would drop from the present 10% to 8%, at or just below their cost of capital. America Inc would go from being the world’s greatest profit machine to flirting with Japanese-style financial-zombie status"
https://www.economist.com/news/business/21735029-stockmarket...
"Imagine if advertising spending really did rise to 1.8% of GDP in America by 2027. Most firms’ costs would have to rise, cutting total corporate profits (excluding those of ad platforms) from about 6.5% to 5.7% of GDP, the kind of drop normally associated with a recession. Alternatively, imagine if the firms in the S&P 500 index (excluding ad platforms) bore all the additional cost of the advertising boom. Their combined return on capital would drop from the present 10% to 8%, at or just below their cost of capital. America Inc would go from being the world’s greatest profit machine to flirting with Japanese-style financial-zombie status"