Seamus Coffey: Small countries such as Ireland may yet have say on what the powerful G7 wants from multinationals     

Seamus Coffey: Like Ireland, the US may lose the right to tax some of the profits of its multinationals.

The G7 reaching an agreed position on the taxation of multinational companies is almost as important as details of their agreement. 

The G7 is made up of some of the world's largest economies and the group having an agreed position means it will hold significant sway.