This paper explores the impact of high public debt on long-run economic growth. The analysis, based on a panel of advanced and emerging economies over almost four decades, takes into account a broad range of determinants of growth as well as various estimation issues including reverse causality and endogeneity. In addition, threshold effects, nonlinearities, and differences between advanced and emerging market economies are examined. The empirical results suggest an inverse relationship between initial debt and subsequent growth, controlling for other determinants of growth: on average, a 10 percentage point increase in the initial debt-to-GDP ratio is associated with a slowdown in annual real per capita GDP growth of around 0.2 percentage points per year, with the impact being somewhat smaller in advanced economies. There is some evidence of nonlinearity with higher levels of initial debt having a proportionately larger negative effect on subsequent growth. Analysis of the components of growth suggests that the adverse effect largely reflects a slowdown in labor productivity growth mainly due to reduced investment and slower growth of capital stock.

We explore the underlying determinants of the macroeconomic effects of fiscal policy and tax and social security reform using the IMF’s Global Fiscal Model (GFM). We show that the planning horizon of consumers, access to financial markets, and the elasticity of labor supply, as well as the characteristics of utility and production functions, and the degree of competition are all critical for determining the impact of fiscal policy. Four topical fiscal policy issues, for a representative large and small economy, are examined: the effects of changes in government debt, higher government spending, tax reform, and privatization of retirement savings.

The paper analyzes the determinants of success of recent fiscal consolidations in the OECD countries as well as the short-run and long-run effects of fiscal adjustments on economic activity by looking at fourteen case studies, panel data for OECD countries, and the results of simulations using a non-Ricardian multi-country dynamic general equilibrium model. The study finds that while fiscal consolidations tend to have short-run contractionary effects, they can be expansionary in the long run, provided that they do not rely excessively on cuts in productive government expenditure. They can also create positive spillover effects for the rest of the world.

This paper analyzes the extent to which the degree of international economic integration, both financial and trade, affects corporate tax rates. It explores this issue in the context of strategic behavior by countries, taking into account other global and domestic political economy factors. Tax rates are analyzed using a unique tax dataset for advanced and developing economies extending over five decades. We report a number of novel results: there is no general negative relationship between financial globalization and corporate tax rates and revenues—results vary according to country grouping with OECD countries showing a positive relationship; the United States exhibits a “Stackelberg” type of leadership on other countries; trade integration is inversely correlated with tax rates; and public sentiment and ideology affect tax rates. The policy implications of these findings, particularly given budgetary pressures in the aftermath of the global crisis, are noted.

This article revisits whether budget deficits affect interest rates, and broadens the literature by examining whether financial globalization has changed this relationship. A structural model of interest determination is extended to account for the fact that official capital flows are determined differently than private flows and is estimated for a 1960–2005 G7 panel. We find that deficits have a significant but small effect on long-term rates, but that this result depends on the fiscal concept used. Moreover, we find no evidence of structural change in interest rate determination in the recent decades, with the exception of an increased impact of insurance-related capital inflows in recent years.

This paper investigates the dynamics of international government bond market integration in six of the G7 economies over two decades leading up to the global crisis. It examines whether such integration had been significant; the extent to which integration at the short and long end of the yield curve differed; the nature of such integration; and the extent of the decoupling of the long rates from short rates. These issues are investigated using the rigorous smooth-transition copula-GARCH model framework. The results show that integration at the long end of the yield curve had been increasing, had become pronounced, and was significantly greater than at the short end. Decoupling between the short and long end of the yield curve was notable, with important implications for the efficacy of monetary policy in the period before the crisis.

The recent sharp increase in fiscal deficits and government debt in many countries raises questions regarding their impact on long-term sovereign bond yields. While economic theory suggests that this impact is likely to be adverse, empirical results have been less clear cut, have generally ignored nonlinear effects of deficits and debt through some other key determinants of yields, and have been mostly confined to advanced economies. This paper reexamines the impact of fiscal deficits and public debt on long-term interest rates during 1980 - 2008, taking into account a wide range of country-specific factors, for a panel of 31 advanced and emerging market economies. It finds that higher deficits and public debt lead to a significant increase in long-term interest rates, with the precise magnitude dependent on initial fiscal, institutional and other structural conditions, as well as spillovers from global financial markets. Taking into account these factors suggests that large fiscal deficits and public debts are likely to put substantial upward pressures on sovereign bond yields in many advanced economies over the medium term.

This paper shows that increasing government social expenditures can make a substantive contribution to increasing household consumption in China. The paper first undertakes an empirical study of the relationship between the savings rate and social expenditures for a panel of OECD countries and provides illustrative estimates of their implications for China. It then applies a generational accounting framework to Chinese household income survey data. This analysis suggests that a sustained 1 percent of GDP increase in public expenditures, distributed equally across education, health, and pensions, would result in a permanent increase the household consumption ratio of 1¼ percentage points of GDP.

Financial sector taxation.How can the tax system be used to reduce systemic financial sector risk?The Monitor summarizes the proposals put forward in a recent IMF report in this area, notably the "Financial Stability Contribution," proposed by the IMF to internalize systemic risk and raise revenues to offset future financial support needs.• Carbon pricing.What are the fiscal implications of regimes to address the environmental impact of carbon-based fuels?Efficient carbon-pricing schemes could raise% percent of GDP in advanced economies and 1 1 /z percent of GDP in emerging economies within the next ten years, while targeted transfers could offset any impact on the poor.• The VAT.How can revenues from value-added taxes (VATs) be increased to support consolidation? Advanced economies should concentrate on eliminating preferential rates.Emerging economies should concentrate on improving compliance.

This paper presents sharp increase in government debt has complicated the management of preexisting challenges from population aging, especially in advanced economies. The increase in debt ratios projected for these economies is the largest since World War II. The increase in deficits and debt raises complicated tradeoffs. Policymakers will need to balance two competing risks: on the one hand, a too hasty withdrawal of fiscal stimulus would risk nipping a recovery in the bud; on the other hand, with a delayed withdrawal investor concerns about sustainability may increase, leading to higher interest rates on government paper, undermining the recovery and increasing risks of a snowballing of debt. Regardless of the timing of adjustment, its necessary scale will be quite large, particularly for high-debt advanced economies. Preserving investor confidence in government solvency is key to avoiding an increase in interest rates, thereby not only preventing snowballing debt dynamics, but also ensuring that the fiscal stimulus is effective.