AcknowledgementsThe authors are grateful for comments from Artur Lopes and from an anonymous referee of the ECB WP series, from participants at ECB and at ISEG/UTL seminars, and to Roberta De Stefani for research assistance. The opinions expressed herein are those of the authors and do not necessarily reflect those of the ECB or the Eurosystem.
António Afonso
AbstractWe assess the sustainability of public finances in OECD countries, over the period 1970-2010, using unit root and cointegration analysis, both country and panel based, controlling for endogenous breaks. Results notably show: lack of cointegration -absence of sustainabilitybetween government revenues and expenditures for most countries (except for Austria, Canada, France, Germany, Japan, Netherlands, Sweden, and UK); improvements of the primary balance after past worsening in debt ratios for Australia, Belgium, Germany, Ireland, Netherlands and the UK; Granger causality from government debt to the primary balance for 12 countries (suggesting the existence of Ricardian regimes). Overall, fiscal policy has been less sustainable for several countries, and panel data results corroborate the time-series findings.JEL: C32, E62, H62, H63 Keywords: debt, primary balance, fiscal regimes, stationarity, breaks, causality, panel cointegration, FMOLS 1
Non-technical summaryThe importance of sustainable public finances has received increasing attention particularly in the context and following the 2008-2009 economic and financial crisis. Sustainable fiscal policies can be continued indefinitely without any change in the policy stance, and when the intertemporal government budget constraint holds in present value terms. Conversely, if budgetary imbalances prevail, economic policies at both macro and microeconomic levels will quickly become unsupportable and changes would be required. If such a phenomenon occurs, then fiscal imbalances would imply a need for larger and more painful adjustments for the economy.The main purpose of this paper is to investigate and draw some policy lessons on the sustainability of fiscal policy in a set of 18 OECD countries, using annual data over the period 1970-2010. Besides answering this policy question, we are also interested, among other things, in ascertaining the causal direction between government expenditures and revenues. The causal direction between the two budgetary variables may provide useful insights into how policy makers can manage budget deficits in the future. In our empirical approach we perform a systematic analysis of the stationarity properties of the first-differenced stock of government debt as well as, on the one hand, the relation between government revenues and expenditures and, on the other hand, the relation between primary balances and debt. These approaches provide us with an indirect test on the solvency of public finances in these countries. We conduct this analysis on a country-by-country basis, by means of several time series techniques, for robustness purposes, as well as for the country panel as a...