The UK government published the proposed Corporation Tax (Northern Ireland) Bill yesterday, which would permit Northern Ireland to determine its own corporate tax rate, among other changes to the taxation of corporations in Northern Ireland.  In an official statement, Secretary of State of Northern Ireland Theresa Villiers suggested that the bill would make Northern Ireland more attractive to investors and would permit Northern Ireland to compete with Ireland.  The current corporate income tax rate for UK and Northern Ireland is 21 percent, while Ireland’s corporate income tax rate is 12.5 percent.