The postwar US govt debt of 120% of GDP fell to 40% in 20 years. How did the govt pay off all that war spending in 20 years?
I'm not advocating anything with this comment, just making an observation. Personal income tax rates for inflation-adjusted (to 2013 dollars) $50k income during those Depression and WWII debt paydown years were roughly the same as they are today (25-30%). But for inflation adjusted $200k income level they were in the 50-70% range (versus 30-35% recently) and at the $1 million income level they were 60-90% (versus 35-40% recently). So that is part of the story as to how the post WWII debt was paid down...not just growing the economy. One might argue that the high income tax rates hindered the debt paydown rather than helped it, but nonetheless they are part of how the debt was paid down (or the deficit was held down as GDP grew).
U.S. Federal Individual Income Tax Rates History, 1913-2013 (Nominal and Inflation-Adjusted Brackets) | Tax Foundation
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