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Abstract. Governments around the world identify the advancement of electronic invoicing in businesses as crucial for tackling administrative burdens. This paper examines, for the first time, the potential cost savings of e-invoicing in Belgium. Our analysis shows that the total cost of invoicing for Belgian private sector businesses in 2014 amounted to €3.47 billion (0.96% of GDP) and could be reduced to €1.46 billion (0.38% of GDP) if all invoices were sent digitally. Furthermore, an analysis of both barriers and enablers of e-invoicing reveals significant concerns that remain regarding the safety of e-invoicing, although a majority of private sector businesses clearly identifies the potential efficiency gains. From our contingent valuation survey among 683 Belgian businesses, we learn that the average willingness to pay (WTP) for the required investments for implementing digital invoicing amounts to €2,380. However, the potential annual cost savings of digital invoicing for the average small business in our sample is over €7,000. Additionally, our linear regression models indicate that the WTP is positively impacted by the perceived time and reduced risk gains of digital invoicing.

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This paper exploits a panel of 28 European Union (EU) countries between 1995 and 2016 to analyze whether higher debt resulted in lower private investment – the so called debt overhang effect. We deal with the potential endogeneity between private investment and other macroeconomic determinants by applying an instrumental variable approach (GMM). Our results support the debt overhang hypothesis and indicate that this relationship only works through the public debt channel. In our baseline regression, a 10 percentage point increase in public debt reduced private investment by €18.32 billion, given the levels of private investment prevalent in 2016. By contrast, private debt does not appear to be a significant determinant of private investment. These results hold after controlling for a number of factors that might have caused public debt to increase and private investment to decrease. While our analysis focuses on the financial sector channel, we find no evidence that public debt tightens the credit constraints for private firms or worsens the public debt overhang. We also show that government bailouts of the financial sector, which could alleviate financial distress and boost credit provision, do not appear to be effective in mitigating the public debt overhang effect. Finally, we find evidence that the financial openness of a country does alleviate the negative impact of public debt on private investment. This might suggest that attracting foreign capital compensates for a contraction in the domestic pool of financial resources due to higher public debt levels.

Although the recent global financial crisis has stimulated a vast amount of research on the impact of public debt on economic growth and also increasingly on the role of private credit, the total levels of indebtedness of an economy have largely been ignored. This paper studies the impact of the total level of and increases in debt-to-GDP on economic growth for 26 developed countries in the short, medium and longer term. We analyse whether we can predict the future level of growth, simply by looking at the total level of debt, or increases in that debt level. We find that there is a negative correlation between high levels of debt and short term economic growth, but that this effect tapers in the medium and long term. Similarly, we find that rapid debt accumulation is negatively related to economic growth over the short term, the impact is less pronounced over the medium term and is nonexistent over the long term. JEL classificationH63; O40.