Donald Trump

US Republicans’ claims about the benefits of tax cuts have a credibility deficit

Stephen Roach says already depleted savings rates, the prospects of soaring budget and trade deficits, plus the failure of past supply-side tax cuts to pay off, all make Republican claims about their current bill unbelievable

PUBLISHED : Monday, 27 November, 2017, 4:41pm
UPDATED : Monday, 27 November, 2017, 4:41pm

Tax cuts masquerading as tax reform are the best way to describe the thrust of Washington’s latest policy gambit. The case is largely political – namely, the urgency of a Republican Congress to deliver a legislative victory for a Republican president who has had few. The consequences, however, are ultimately economic – and, unsurprisingly, likely to be far worse than the politicians are willing to admit.

Taking the lead from President Donald Trump, the political case for tax cuts is that they are essential to “make America great again”. Overtaxed and cheated by bad trade deals, goes the argument, America needs tax relief to revive its competitive prowess.

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Notwithstanding the political pandering to hard-pressed middle-class families, corporate America is clearly the focus of these efforts, with proposed legislation aiming to reduce business tax rates from 35 per cent to 20 per cent. Never mind that US companies currently pay a surprisingly low effective corporate tax rate – just 22 per cent – when judged against post-second-world-war experience.

And pay no attention to the latest tally of international competitiveness by the World Economic Forum, which finds the US back in second place (out of 137 countries). And, of course, don’t draw comfort from the lofty stock market valuations of the broad constellation of US companies. Forget all that, Republicans insist: cut business taxes, they say, and all that ails America will be cured.

There are times when the politicisation of economic arguments becomes dangerous. This is one of those times. The US can’t afford the current tax cuts making their way through Congress. According to the non-partisan Congressional Budget Office, the cuts will result in a cumulative deficit of about US$1.4 trillion over the next decade. The problem arises because America’s chronic saving shortfall has now moved into the danger zone, making it much more difficult to fund multi-year deficits today than was the case when cutting taxes in the past.

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The so-called Kennedy tax cuts of 1964 and the Reagan tax cuts of 1981 are important cases in point. The net national saving rate – the broadest measure of domestic saving, which includes depreciation-adjusted saving of households, businesses and the government sector – averaged 10.1 per cent during those two years (1964 and 1981). In other words, back then, the US could afford to enact major tax cuts.

That is not the case today, with the net domestic saving rate a mere 1.8 per cent of national income. Even during the two tax cuts that followed – the second instalment of Reagan’s fiscal programme in 1986, and the initiatives of George W. Bush in 2001 – the net national saving rate averaged 4.2 per cent, more than double the current level.

Both experience and macroeconomic theory indicate what to expect. Savings-short economies cannot go on deficit-spending binges without borrowing surplus saving from abroad. That is what brings the balance-of-payments and trade deficits directly into the debate over fiscal policy.

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Significantly, the US current account was in slight surplus during the big tax cuts of 1964 and 1981 – in sharp contrast to today’s deficit of 2.6 per cent of GDP. With fiscal deficits likely to push an already-low domestic saving rate even lower – possibly back into negative territory, as was the case from 2008 to 2011 – there is a great risk of a sharply higher current account deficit. And a bigger current account deficit means that the already-large trade deficit will only widen further, violating one of the main tenets of Trumponomics – making America great again requires closing the trade gap.

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It is at this point where the tale goes from fact to fiction. Trump and the congressional Republican majority insist that the proposed tax cuts will be self-financing, because they will spur economic growth, causing revenues to surge. This so-called supply-side argument, first advanced in support of the Reagan-era tax cuts, has been a lightning rod in US fiscal policy debates ever since.

Reality has turned out quite differently than the supply-siders envisioned. Yes, the economy recovered spectacularly from a deep recession in 1981-1982. But that was due largely to an aggressive easing of monetary policy following the Federal Reserve’s successful assault on double-digit US inflation.

By contrast, the fiscal nirvana long promised by supply siders never materialised. Far from vanishing into thin air, federal budget deficits ballooned to 3.8 per cent of GDP during the 1980s, taking public debt from 25 per cent of GDP in 1980 to 41 per cent by 1990.

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Not only did the supply siders’ self-funding promises go unfulfilled; they also marked the beginning of the end for America’s balance of payments equilibrium. From 1960 to 1982, the current account was basically in balance, with a surplus averaging 0.2 per cent of GDP. On the heels of the budget deficits of Reaganomics and the related plunge in national saving, the current account swung sharply into deficit, averaging minus 2.4 per cent of GDP from 1983 to 1989. And it has remained in deficit ever since (with the exception of a reprieve in the first two quarters of 1991 due to external funding of the Gulf war).

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Far from a recipe for greatness, the Trump fiscal gambit spells serious trouble. Lacking in saving, outsize US budget deficits point to sharp deterioration on the balance of payment and trade fronts. Nor will creative supply-side accounting alter that outcome. A “dynamic scoring” by the non-partisan Tax Policy Centre suggests growth windfalls might prune the multi-year deficit from US$1.4 trillion to US$1.3 trillion over the next decade – hardly enough to finesse America’s intractable funding problem.

George H.W. Bush said it best when he was campaigning for the Republican presidential nomination in April 1980. He rightly criticised the “voodoo economic policy” of his opponent, Ronald Reagan. For today’s savings-short US economy, déjà vu is a painful understatement of what lies ahead.

Stephen S. Roach, a faculty member at Yale University and former chairman of Morgan Stanley Asia, is the author of Unbalanced: The C odependency of America and China. Copyright: Project Syndicate