Answer:
education
Step-by-step explanation:
The standard of living of an individual is the amount of wealth and basic necessities of life they have been able to accrue. The GDP, Gross Domestic Product is the total amount of products produced within a country over a specified period in time. The higher the GDP, the better the standard of living.
Other measurements of standard of living is health and education. We can use the literacy rate in a country to infer to a reasonable extent the standard of living.