'''Purchasing Power Parity''' (or '''PPP''') refers to differences in price levels among countries, as opposed to [[Gross National Product]], which measurs total economic output.<ref>Almond, Gabriel A. ''Comparative Politics Today: A World View''. New York: Pearson, 2004.</ref> | '''Purchasing Power Parity''' (or '''PPP''') refers to differences in price levels among countries, as opposed to [[Gross National Product]], which measurs total economic output.<ref>Almond, Gabriel A. ''Comparative Politics Today: A World View''. New York: Pearson, 2004.</ref> |