Central bank and political cooperation needed for green finance

The debate surrounding the European Central Bank's (ECB) role in financing green investments continues, with differing views on the appropriate division of responsibilities between central bankers and politicians. An earlier proposal suggested the ECB offer cheaper financing for green investments. However, Juha Kilponen and Weixi Niemi of the Bank of Finland argued that deciding on investments falls under the purview of politicians, not central bankers.

The author counters that central bankers have already made strategic decisions to stimulate investments. For instance, since 2014, the ECB has provided banks with favorable loans conditional on their further lending to households and businesses. Research indicates that 80% of the latest loan program funds ended up with polluting companies, suggesting that current policies may inadvertently support environmentally harmful activities.

The article proposes that the ECB can promote green investments within its mandate by coordinating strategic actions with politicians. One suggestion is for the ECB to launch a green loan program, with eligibility criteria determined by politicians based on the EU's green finance taxonomy. Banks would then make the final decisions on loan distribution. This approach would align monetary policy with political objectives for environmental sustainability.

Furthermore, the author advocates for improved coordination between fiscal and monetary policies to combat the climate crisis, which poses systemic risks to price stability. Beyond cheap loans, central banks could also encourage the green transition through capital requirements and bond purchases. Looking ahead, the author suggests that central bank mandates may need updating to clarify their objectives and responsibilities, particularly concerning exceptional measures, ensuring a more coherent and effective approach to both economic stability and climate action.