By Dr. Lawrence A. JosephThe constitutional basis for the conduct of elections in Guyana since 1964 is by way of a system of Proportional Representation (PR). On this basis, voters in Guyana recently enabled a regime change when they voted on 11th May last. The coalition parties comprising A Partnership for National Unity and the Alliance for Change (APNU/AFC) led by former Army Brigadier David Granger, won the majority of seats in the sixty-five member Parliament, referred to as the National Assembly. The outgoing regime, the People’s Progressive Party/Civic (PPP/C) led by former President of the Republic, Donald Ramotar is now the official opposition. This latter party remained in power in Guyana for over twenty-three years, since 1992.