Foreign Direct Investment flows to countries where the most prominent political parties are national, rather than regional

What is the relationship between Foreign Direct Investment (FDI) and political party organisation? Joel W. Simmons, Allen Hicken, Ken Kollman and Irfan Nooruddin share evidence which shows that countries with a higher number of regionalised political parties will have more difficulty attracting FDI than those countries with national political parties in positions of greater prominence.