Deficit Projections

Greg Mankiw writes:
Making matters worse, these bleak budget projections are based on relatively optimistic economic assumptions. The administration forecasts economic growth of 3.0 percent from the fourth quarter of 2009 to the fourth quarter of 2010, followed by 4.3 percent the next year. By contrast, the Congressional Budget Office predicts growth of 2.1 percent and 2.4 percent for these two years. Lower growth would mean less tax revenue, larger budget deficits and a more rapidly increasing debt-to-G.D.P. ratio.

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If the President’s proposals were enacted, the federal government would record deficits of $1.5 trillion in 2010 and $1.3 trillion in 2011. Those deficits would amount to 10.3 percent and 8.9 percent of gross domestic product (GDP), respectively. By comparison, the deficit in 2009 totaled 9.9 percent of GDP.

Measured relative to the size of the economy, the deficit under the President’s proposals would fall to about 4 percent of GDP by 2014 but would rise steadily thereafter. Compared with CBO’s baseline projections, deficits under the proposals would be about 2 percentage points of GDP higher in fiscal years 2011 and 2012, 1.3 percentage points greater in 2013, and above baseline levels by growing amounts thereafter. By 2020, the deficit would reach 5.6 percent of GDP, compared with 3.0 percent under CBO’s baseline projections.

CBO Estimates

2009: 1.413 trillion

2010 CBO baseline: $1360 billion
2010 CBO (Obama): $1500 billion

2011 CBO baseline: $995 billion
2011 CBO (Obama): $1341 billion

2012 CBO baseline: $641 billion
2012 CBO (Obama): $915 billion