Environmental sustainability is perhaps the key societal challenge of our times. Achieving it will require a significant level of financing and investment, and here the role of the banking industry is fundamental. Banks can play a broader and far-reaching role by adopting environmental concerns...

In this paper, we argue for a regulatory framework under which a bank’s required level of equity capital depends on the equity capital of its peers. Such bankingon- the-average rules are transparent and could also be combined with the current regulatory framework. In addition, we argue that...