 Single member district representation returns single representatives of geographically defined areas containing roughly equal populations to the legislature and is prominent in the United States, the United Kingdom, and India, among other places. The most common form of proportional representation is party list proportional representation. In a simple form of such a scheme, a number of parties compete for election to a legislature that is not divided into geographical districts. Parties acquire seats in the legislature as a proportion of the total number of votes they receive in the voting population as a whole. Group representation occurs when the society is divided into non-geographically defined groups such as ethnic or linguistic groups or even functional groups such as workers, farmers and capitalists and returns representatives to a legislature from each of them.