Comment by mikeyouse

For better or worse, Ireland’s extremely lax tax rules resulted in a ton of multinational corporate cash ‘stuck’ there with companies having the option of spending there roughly tax free or repatriating back to the US at some rate higher than that. It also really helps sell the ‘of course an Irish subsidiary owns all of our IP’ tax claims if there is actual spending there, hence you got all the pharma investment and the capital projects from others like Intel and Apple.