The Fiscal Multiplier in a Time of Massive Public Debt

Abstract

When governments loose investors' confidence, additional public spending and the resulting increase in public debt would push-up risk-adjusted interest rates in a more aggressive way. A regression model on a panel of 26 EU countries over the period 1996-2011 shows that a 10 percentage point increase in the debt-to-GDP ratio is connected to a slowdown in annual growth rates of 0.28 percentage point. Furthermore, the effectiveness of fiscal spending is adversely affected by the amount of public debt; for a debt-to-GDP ratio above 150% the impact on growth of the fiscal stimulus turns negative.