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Jack Salmon argues that regressing GDP growth on the debt-to-GDP ratio often yields no significant effect due to two opposing forces.
He explains that while deficit spending boosts measured GDP in the short run, higher debt levels can suppress private capital formation over time, which in turn offsets the initial gains. As a result, the net effect can obscure the underlying economic channel.
Salmon has previously commented on major contributors to the U.S. economy. He noted that Elon Musk has created $2.5 trillion in shareholder wealth. Salmon also highlighted the creation of more than 150,000 jobs tied to Musk-led ventures.