Khan Academy Static

Economics can some times get confusing because one person's expenditure is another person's income which can then be used for expenditure and on and on and on. Seems very circular. It is. This tutorial helps us grapple with this and introduces us to the primary tool economists use to measure a nations productivity/income/expenditure--GDP (gross domestic product).

12430_Parsing_gross_domestic_product.html

12429_Circular_flow_of_income_and_expenditures.html

12431_More_on_final_and_intermediate_GDP_contributions.html