“The U.S. fiscal gap associated with today’s federal fiscal policy is huge for plausible discount rates.... closing the fiscal gap requires a permanent annual fiscal adjustment equal to about 14 percent of U.S. GDP.” - section 6 of above link
To put 14 percent of gross domestic product in perspective, current federal revenue totals 14.9 percent of GDP. So the IMF is saying that closing the U.S. fiscal gap, from the revenue side, requires, roughly speaking, an immediate and permanent doubling of our personal-income, corporate and federal taxes as well as the payroll levy set down in the Federal Insurance Contribution Act.Such a tax hike would leave the U.S. running a surplus equal to 5 percent of GDP this year, rather than a 9 percent deficit. So the IMF is really saying the U.S. needs to run a huge surplus now and for many years to come to pay for the spending that is scheduled. It’s also saying the longer the country waits to make tough fiscal adjustments, the more painful they will be.Is the IMF bonkers?No. It has done its homework. So has the Congressional Budget Office whose Long-Term Budget Outlook, released in June, shows an even larger problem.‘Unofficial’ LiabilitiesBased on the CBO’s data, I calculate a fiscal gap of $202 trillion, which is more than 15 times the official debt. This gargantuan discrepancy between our “official” debt and our actual net indebtedness isn’t surprising. It reflects what economists call the labeling problem. Congress has been very careful over the years to label most of its liabilities “unofficial” to keep them off the books and far in the future.For example, our Social Security FICA contributions are called taxes and our future Social Security benefits are called transfer payments. The government could equally well have labeled our contributions “loans” and called our future benefits “repayment of these loans less an old age tax,” with the old age tax making up for any difference between the benefits promised and principal plus interest on the contributions.The fiscal gap isn’t affected by fiscal labeling. It’s the only theoretically correct measure of our long-run fiscal condition because it considers all spending, no matter how labeled, and incorporates long-term and short-term policy.$4 Trillion BillHow can the fiscal gap be so enormous?Simple. We have 78 million baby boomers who, when fully retired, will collect benefits from Social Security, Medicare, and Medicaid that, on average, exceed per-capita GDP. The annual costs of these entitlements will total about $4 trillion in today’s dollars. Yes, our economy will be bigger in 20 years, but not big enough to handle this size load year after year.This is what happens when you run a massive Ponzi scheme for six decades straight, taking ever larger resources from the young and giving them to the old while promising the young their eventual turn at passing the generational buck.Herb Stein, chairman of the Council of Economic Advisers under U.S. President Richard Nixon, coined an oft-repeated phrase: “Something that can’t go on, will stop.” True enough. Uncle Sam’s Ponzi scheme will stop. But it will stop too late.