Who buys the output of the economy? How much do household's purchase for consumption, how much do households and firms purchase for investment, and how much does the government buy for public purposes?

Answer 1

Households purchase the majority of the output of the economy for consumption. Households and firms purchase a portion of the output for investment, and the government purchases a portion of the output for public purposes. The exact amount of each varies depending on the economic conditions of the country.