What is the difference between a multinational corporation and a trans-national corporation?

US firms warn Irish over tax move

The Irish government has been given a stark warning from some of the biggest American companies in Ireland on the risk of a mass exodus if the country’s low corporation tax rate is raised.

What is the difference between a multinational corporation and a trans-national corporation? And what will be the growing consequences for US firms as voters imagine they are versus changes happening at an accelerating pace in real terms?

In that I am not going to answer this question this morning, I believe it is a topical discussion. Could use some links, however.