Tax havens 'just need to end'
New global rules forcing companies to report taxable activities country-by-country publicly have been called for by a group of 300 prominent economists.
One of the group, Professor Jeffrey Sachs, told the Today programme that tax havens were "absolutely abusive".
"These abuses are not accidents or loopholes, they are the design of the system. This is a system that has been created over time for the convenience of very rich and powerful people," he told presenter Sarah Montague.