Debt sustainability in the public sector is the foundation of growth and on the mid-21st-century agenda priority. Governments around the globe have taken debt geometrically, with public debt reaching or even exceeding 100% of GDP by 2025 for the majority of countries. Growth and debt have a simple dynamic to its use as the vehicle in which to chart a course of sustainable fiscal policy and economic growth.
Public Debt and Growth Dynamics
High public debt will dampen growth by expelling private investment, raising the cost of credit, and closing fiscal space. There is an empirically found amplification effect in the sense that fiscal consolidation as a response to high debt strikes investment and productivity growth and contributes to debt ratios and puts fiscal stagnation on a self-reinforcing path.
Conversely, debt-conservative countries that implement structural reforms can enjoy the long-run dividend of a virtuous productivity growth and low-debt cycle. The road to sustainable public debt thus mainly depends on policy action, macro fundamentals, and institutions.
Emerging Risks and Structural Challenges
The following emerging risks are confronting debt sustainability challenges:
- Demographic Change: An aging population is a source of rising social expenditures, especially expenditure on health and pensions, which is a strain on the budget and reduces growth-supporting levels of the workforce.
- Political and Policy Uncertainty: Increases investors’ risk premia and sovereign’s and borrowing costs and worsens debt dynamics.
- Climate Change: Climate impact expenditure and adaptation investment expenditure increase.
- Interest Rate Environment: Rising world interest rates increase the burden of debt servicing and therefore deter resources from productive use.
Policy Proposals
Long-term emergence and growth require:
- Fiscal Discipline with Flexibility: Medium-term fiscal structures with room for confidence to take in shocks.
- Structural Reforms: Better labor markets, productivity, and institutions raise potential growth.
- Targeted Public Investment: High-return high-priority investment in infrastructure and technology.
- Policies of Inclusive Growth: Wider share of economy reaching to the poorer segments of society offsets demographic headwinds.
- Coordination at the International Level: Mutual arrangements allow for easier management of spillovers and investor sentiment at the global level.
Conclusion
Public debt sustainability is inextricably tied with medium-term growth prospects. Excessive debt generates headwinds in the form of loss of policy space and fiscal drag, but secure debt and affluence can be maintained with prudent fiscal management and pro-growth policies.
With 2025 only a decade away and facing unprecedented demographic and climatic stresses, governments are torn between taking ten-year or more, long-term, balanced policy decisions that yield fiscal sustainability as well as dynamic and well-balanced economic development for future generations.