the plan creates sustained deficits that cause a financial crisis, undermines U.S. foreign policy and results in increased interest rates

(William G. Gale, Samuel Brown, and Fernando Saltiel, “Carbon Taxes as Part of the Fiscal Solution,” pg online @ https://www.brookings.edu/research/carbon-taxes-as-part-of-the-fiscal-solution/ //um-ef)

Containing deficits matters for several reasons. Sustained deficits may enhance the risk of a financial crisis. Even in the absence of precipitating a financial crisis, however, sustained deficits have deleterious long-term effects, as they translate into lower national savings, higher interest rates, and increased indebtedness to foreign investors, all of which reduce future national income. In addition to the growth impacts, sustained deficits may impose unfair burdens on future generations and may constrain U.S. foreign policy or defense positions, especially as they relate to creditor nations. Gale and Orszag (2004b) estimate that a 1 percent of GDP increase in the deficit will raise interest rates by 25 to 35 basis points in the United States and reduce national saving by 0.5 to 0.8 percentage points. Engen and Hubbard (2004) obtain similar results with respect to interest rates. Thus, relative to a balanced budget, this study suggests a deficit equal to 6 percent of GDP would raise interest rates by at least 150 basis points and reduce the national saving rate by at least 3 percent of GDP. The IMF (2010) estimates that, in advanced economies, an increase of 10 percentage points in the initial debt/GDP ratio reduces future GDP growth rates by 0.15 percentage points. Hence (if this result is extrapolated linearly, and we do so with caution, since it would be easy to think of reasons that would make a larger debt change have more-than-proportional or less-than-proportional effects), the increase in the debt-to-GDP ratio from about 40 percent earlier in the decade to 85 percent by 2022 (Auerbach and Gale 2012) would be expected to reduce the growth rate by a whopping 0.675 percentage points. Thus a deficit reduction plan that included tax increases (at least on that did not primarily rely on raising taxes on savings and investment) could, on balance, help spur economic growth in contrast to continuing policy as normal.