furthermore,the rate of increase in real GDP per capita is at best an indicator of improvements in the average living standard of nation's residents.
Real standard of living can advance without per capita income growth. This is happen if people, on average, enjoy more leisure time while producting as much as they did before.
for example, if country's per capita real income remained unchanged for ten years while the average standars of living would difinitely be higher at the end of the ten-year period, because they would be working fewer hours per week to produce and consome the same real output . In US for instance, average hours worked per week fell steadly until the 1960s before leveling off. Hence, before the 1970s measureed US economic growth, in terms of increased real income per capita, tended to undrstate the true growth in living standards that had taken place.