The CBO projections, by design, ignore the adverse effects that such high debt and deficits would likely have on our economy. But if government debt and deficits were actually to grow at the pace envisioned in this scenario, the economic and financial effects would be severe.
Diminishing confidence on the part of investors that deficits will be brought under control would likely lead to sharply rising interest rates on government debt and, potentially, to broader financial turmoil. Moreover, high rates of government borrowing would both drain funds away from private capital formation and increase our foreign indebtedness, with adverse long-run effects on U.S. output, incomes, and standards of living.