Deficits

A government budget is a financial statement presenting the government's proposed revenues and spending for a financial year. The government budget balance, also alternatively referred to as general government balance,public budget balance, or public fiscal balance, is the overall difference between government revenues and spending. A positive balance is called a government budget surplus, and a negative balance is a government budget deficit. A budget is prepared for each level of government (from national to local) and takes into account public social security obligations.

The government budget balance is further differentiated into the primary balance and the structural balance (also known as cyclically-adjusted balance). The primary budget balance equals the government budget balance before interest payments. The structural budget balances attempts to adjust for the impacts of the real GDP changes in the national economy.

The government fiscal balance is one of three major sectoral balances in the national economy, the others being the foreign sector and the private sector. The sum of the surpluses or deficits across these three sectors must be zero by definition. For example, if there is a foreign financial surplus (or capital surplus) because capital is imported (net) to fund the trade deficit, and there is also a private sector financial surplus due to household savings exceeding business investment, then by definition, there must exist a government budget deficit so all three net to zero. The government sector includes federal, state and local governments. For example, the U.S. government budget deficit in 2011 was approximately 10% GDP (8.6% GDP of which was federal), offsetting a capital surplus of 4% GDP and a private sector surplus of 6% GDP.

Financial journalist Martin Wolf argued that sudden shifts in the private sector from deficit to surplus forced the government balance into deficit, and cited as example the U.S.: "The financial balance of the private sector shifted towards surplus by the almost unbelievable cumulative total of 11.2 per cent of gross domestic product between the third quarter of 2007 and the second quarter of 2009, which was when the financial deficit of US government (federal and state) reached its peak...No fiscal policy changes explain the collapse into massive fiscal deficit between 2007 and 2009, because there was none of any importance. The collapse is explained by the massive shift of the private sector from financial deficit into surplus or, in other words, from boom to bust."

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