How could your pension be linked to world events?

On the face of it you wouldn’t think there was a link between events in Ireland, Greece or indeed Korea, however if you are about to buy an Annuity with your pension you could be majorly affected. Why is this? As they near retirement most people’s minds wander to consider the sorts of things they might like to do with their time; seeing more of the grandchildren, more time in the garden or perhaps visiting those far flung places that they always dreamed of seeing.