Key findings:
1. Private investment in infrastructure projects in primary markets is not increasing, but it weathered the pandemic shocks.
2. Overall private investment in infrastructure projects remains insufficient to close the infrastructure gap.
3. There are significant differences in private investment in infrastructure when comparing high-income countries and others.
4. There is a strong appetite for renewable energy.
5. Private investment in infrastructure projects is mainly financed by loans from financial service institutions, but debt capital markets are increasing.
6. In middle- and low-income countries, development banks play an important role as financiers, and export credit agencies are playing an increasing role.
7. In the last decade, returns for both listed and unlisted infrastructure equities have strongly increased.
8. Historically, unlisted infrastructure equities have provided higher risk-adjusted returns than global equities and listed infrastructure equities.
9. Infrastructure debt consistently performs better than non-infrastructure debt worldwide.
10. The lack of bankable and investment-ready pipelines of infrastructure projects is often considered the key bottleneck in mobilising private capital for infrastructure investments.
11. Project preparation facilities (PPFs) are providing technical and funding support for project preparation mainly in developing countries.
12. Companies investing in infrastructure are incorporating ESG factors better than other companies.
13. Green, private investment in infrastructure projects has been increasing.
14. Preliminary evidence shows sustainable investments perform better than the overall infrastructure sector.