Across the globe climate policy is shifting away from a carbon price towards investment subsidies, such as grants, interest-subsidised loans or guarantees. This increases the risk of inefficient public spending. This paper shows how the main market imperfections related to the emission...

Across the globe, climate policy is increasingly using investment support instruments, such as grants, concessional loans, and guarantees – whereas carbon prices are losing importance. This development substantially increases the risk of inefficient public spending. In this paper, we examine...