Goldman Sachs Says It May Be Forced to Fundamentally Question How Capitalism Is Working

The profit margins debate could lead to an unsettling conclusion.
Photographer: Jasper Juinen/Bloomberg
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One of the most heated debates among investors is the question of whether corporate profit margins can maintain their elevated level, or whether they will inevitably revert to mean.

Here's a quick look at S&P 500-stock index profit margins, for example, going back more than 25 years. They remain high by historical standards.