Spain has a lower standard of living than the United States based on per capita GDP.
Explanation:
On this chart we have information about the GDP per capita for four countries; Luxembourg, the United States, Spain, and Mexico. It can be noticed that the country with the highest GDP per capita on this chart, by far, is Luxembourg, while the one with the lowest, also by far, is Mexico.
The United States have second highest GDP per capita on this chart, while Spain the third highest. The difference between the two is 16,642, which is quite a difference indeed, so based solely on this information it seems that the people in the United States have it much better than the people in Spain. In reality though it is not that much of a difference, as the prices of the products in Spain are lower in general than the prices of the products in the US, so actually the people of these two countries have relatively similar spending power.