Testing the EU Fiscal Surveillance: How Sensitive is it to Variations in Output Gap Estimates?

European Economy No. 285

29 Pages Posted: 14 Oct 2008 Last revised: 17 Oct 2008

See all articles by Martin Larch

Martin Larch

European Fiscal Board

Sven Langedijk

European Union - European Commission; Joint Research Center of the European Commission

Date Written: August 1, 2007

Abstract

Real-time estimates of potential output are used for the calculation of the cyclically-adjusted budget balance, one of the main indicators in the assessment of the fiscal performance of EU Member States. The estimation of potential output involves a decomposition of actual output into a cyclical and a structural component based on arbitrary assumptions about the statistical properties of the two unobserved components. With a very high degree of smoothing, variations in GDP are mostly taken to be temporary as are the ensuing changes in the headline deficit. Conversely, with a low degree of smoothing, variations in GDP are mostly taken to be permanent, leading to different policy conclusions. Our paper examines whether and how different degrees of smoothness of potential output would have supported different decisions in the EU budgetary surveillance in terms of both timing and substance. The results show that only a very high degree of smoothing of potential output would significantly reduce the reliability of the surveillance indicators. We conclude that a higher degree of smoothing compared with current practice would not be harmful for EU fiscal surveillance, while it could contribute to more cautious policies by signaling larger and longer periods of economic 'good times'.

Keywords: potential output, cyclical adjustment, EU budgetary surveillance, Stability and Growth Pact, Excessive Deficit Procedure, safety margin, minimum benchmark, fiscal surveillance indicators

Suggested Citation

Larch, Martin and Langedijk, Sven, Testing the EU Fiscal Surveillance: How Sensitive is it to Variations in Output Gap Estimates? (August 1, 2007). European Economy No. 285, Available at SSRN: https://ssrn.com/abstract=1284418 or http://dx.doi.org/10.2139/ssrn.1284418

Martin Larch (Contact Author)

European Fiscal Board ( email )

Belgium
0032 2 2969244 (Phone)

Sven Langedijk

European Union - European Commission ( email )

Rue de la Loi 200
Brussels, B-1049
Belgium

Joint Research Center of the European Commission ( email )

Via E. Fermi 2749
1049
Belgium

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