How is standard of living a sign of economic performance?

answer:

a standard of living is the level of wealth, comfort, material goods, and necessities available to a certain socioeconomic class or a certain geographic area. the standard of living includes basic material factors such as income, gross domestic product (gdp), life expectancy, and economic opportunity.

the answer is richard nixion

basic principles: federalism, separation of powers, checks and balances, judicial review, representative democracy, limited government, rule of law, individual rights and responsibilities, consent of the governed, majority rule, popular sovereignty, equal protection.