Sir Howard Davies, chairman of the Airports Commission, insisted research showed that regions like Greater Manchester would benefit financially from the expansion in the south-east - and said the airport would too.
In the sense that countries that can only support ONE route to a UK airport will choose LHR, and MAN has got good links to LHR.
Clearly where countries that can only support TWO routes to UK airports, the other will normally be MAN, which doesn't have rwy capacity issues.