Expansionary fiscal contraction
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The Expansionary Fiscal Contraction (EFC) hypothesis predicts that, under certain limited circumstances, a major reduction in government spending that changes future expectations about taxes and government spending will expand private consumption, resulting in overall economic expansion. This hypothesis was introduced by Francesco Giavazzi and Marco Pagano in 1990 in a paper that used the fiscal restructurings of Denmark and Ireland in the 1980s as examples.
The concept that fiscal contraction can result in growth is commonly known as "expansionary austerity".
The authors describe this as the "German view" of budget-cutting. The German view also includes the more traditional assumption that reducing government expenditures as a percent of GDP will lessen crowding out, making "room for the private sector to expand" which only operates when the economy is near full employment. The authors also did not provide a model for EFC but rather described conditions under which it was observed in Denmark from 1983–84 and Ireland from 1987–89, a period when the world was undergoing rapid interest rate declines and worldwide growth. These conditions included a significant currency devaluation prior to assuming a peg against a stable currency (Germany in Denmark's case), budget improvement through significant tax increases and spending cuts and sufficient liquidity that current disposable income did not constrain consumption. The authors stated that when current disposable income constrained consumption, "Keynesian textbook propositions seem to recover their predictive power, as witnessed by the 7% drop in real consumption in 1982 during the first Irish stabilization."
Research support and disagreements
A 2009 study of the 1983-86 Denmark fiscal contraction applied structural VAR/event study methodology to test the EFC hypothesis. This study concluded that the Danish fiscal contraction had not hurt economic expansion, that the EFC hypothesis may work but only for large and credible fiscal consolidations, and that other reforms may have also played an important role. The authors warned that economic contraction, as predicted by traditional Keynesian Economics, would most likely result if government contraction was incremental rather than major and structural. An analysis of EFC using Neo-Keynesian modeling concluded that while there were situations in which consumption could be increased through fiscal contraction in all cases it was negative or neutral to employment so there must have been additional factors at work to explain the reduction in unemployment in Denmark and Ireland in the 1980s. The study concluded that Irish growth was actually lower than would have been expected without the fiscal contraction using the UK growth during the same period as a comparison. Above-average growth in Denmark was probably due to a supply-side shock in the form of the removal of wage indexation mechanisms and a temporary wage freeze which resulted in real wages contracting by 4% between 1982 and 1986.
An IMF working paper on Expansionary Austerity and the Expansionary Fiscal Contraction hypothesis that examined changes in policy designed to reduce deficits found that austerity had contractionary effects on private domestic demand and GDP. This report concluded that other studies appeared biased to overstating the expansionary effects of austerity.
Research carried out by the United Kingdom's Office for Budget Responsibility  indicates that the austerity policies enacted in the United Kingdom had the effects of reducing the 2011-2012 economic growth by 1.4 percent.
- Giavazzi, Fransesco; Pagano, Marco (1990). "Can Severe Fiscal Contractions Be Expansionary? Tales of Two Small European Countries". NBER Macroeconomics Annual. 5: 75–111. JSTOR 3585133.
- Bergman, U. Michael; Hutchinson, Michael (2010). "Expansionary Fiscal Contractions: Re-evaluating the Danish Case" (PDF). International Economic Journal. Korean International Economic Association. 24 (1): 71–93. doi:10.1080/10168731003589857. Retrieved 16 December 2011.
- Barry, Frank; Devereux, Michael B. (April 1995). "The 'Expansionary Fiscal Contraction' Hypothesis: A Neo-Keynesian Analysis". Oxford Economic Papers, New Series. Oxford University Press. 47 (2): 249–264. JSTOR 2663558.
- Guajardo, Jaime; Leigh, Daniel; Pescatori, Andrea (July 2011). "Expansionary Austerity: New International Evidence" (PDF). International Monetary Fund. Retrieved 22 December 2011.
- Chote, Robert (March 2013). "Office for Budget Responsibility" (PDF). Office for Budget Responsibility. Retrieved 8 March 2013.