Widespread tax avoidance means no bank could promise only to invest in companies that don't avoid tax in all countries rather than just in the least developed nations...When the Co-operative Bank [part of Co-operative Group] recently introduced a new ethical policy, some important aspects were reported - but not tax. We can correct that oversight...It is explained as follows: "One of the most effective ways that businesses can contribute to poverty reduction is to pay income tax in developing countries.