Why is the difference between GDP and GNP so large for Ireland?

Question

But not for many other countries?

Answer 1

I don't know the particular numbers for Ireland, but the difference between GNP and GDP is that GNP includes the earnings of citizens living abroad and excludes the earnings of foreigners living there.  So if there are a lot of Irish citizens with foreign income, but not many foreign nationals living in Ireland and making money (or vice versa) the numbers would be very different.

Ireland has had something of a boom in the last decade, so the numbers are likely out of whack due to that.

Answer 2

Alot of production in Ireland is done by foreign company's who's wealth is not taken into account in Ireland's GNP but rather their own countries.  For example, the wealth google creates is counted in US GNP and Irish GDP but not vice versa.

Also the wealth created by AIB in Poland is added to Poland's GDP but Ireland's GNP.