total amount that the government owes rules that govern behavior something given up as the result of a decision goods that go together, like peanut butter and jelly something gained from a decision currency, coins, and checking account deposits goods that can replace each other, like mittens and gloves price of money saved or borrowed
cost - something given up as a result of a decision benefit - something gained from a decision interest - price of money saved or borrowed money -currency,coins abd checking account deposits complements - goods that go together substitutes - goods that can replace each other regulations - rules that govern behaviour national debt -money that the govt owed