Policy makers have argued that markets are not pricing climate risk appropriately yet, which may lead to a misallocation of resources and financial instability. Climate riskadjusted refinancing operations (CAROs) conducted by the central bank are one possible instrument to address this issue....

We study how the subjective beliefs about loan repayment on the side of liquidity-constrained banks affect the central bank's choice of collateral standards in its lending facilities. Optimism on the side of banks, entailing a higher collateral value of bank loans, can lead to excessive lending...