Purchasing Power Standard (PPS) is an artificial currency unit that eliminates price level differences between countries. Thus one PPS buys the same volume of goods and services in all countries. This unit allows meaningful volume comparisons of economic indicators across countries.
The high GDP per capita in Luxembourg is partly due to the country's large share of cross-border workers in total employment. While contributing to GDP, these workers are not taken into consideration as part of the resident population which is used to calculate GDP per capita. For comparison, Gross National Income per capita in Luxembourg was 179% of the EU28 average in 2012.