great question! profit margins have indeed been rising significantly over the past few decades, from around 5% to 12% just since the mid-90s -- https://www.yard

great question! profit margins have indeed been rising significantly over the past few decades, from around 5% to 12% just since the mid-90s -- https://www.yardeni.com/pub/sp500margin.pdf https://www.yardeni.com/pub/sp500margin.pdf