AND CORRECT ANSWERS
Opportunity Cost ✅✅CORRECT ANSW-whatever must be given up to obtain a certain item
3rd Principle of Economics ✅✅CORRECT ANSW-rational people think at the margin
rational people ✅✅CORRECT ANSW-people who systematically and purposefully do the best they
can to achieve their objectives
marginal changes ✅✅CORRECT ANSW-incremental adjustments to an existing plan used after
evaluating costs and benefits
4th Principle of Economics ✅✅CORRECT ANSW-people respond to incentives
incentive ✅✅CORRECT ANSW-something that induces a person to act (prospect of reward or
punishment)
5th Principle of Economics ✅✅CORRECT ANSW-trade can make everyone better off
6th Principle of Economics ✅✅CORRECT ANSW-markets are usually a good way to organize
economic activity
Scarcity ✅✅CORRECT ANSW-the limited nature of society's
resources
Economics ✅✅CORRECT ANSW-the study of how society manages
its scarce resources
1st Principle of Economics ✅✅CORRECT ANSW-people face tradeoffs
,2nd Principle of Economics ✅✅CORRECT ANSW-the cost of something is what you give up to get
it
market ✅✅CORRECT ANSW-a group of buyers and sellers
market economy ✅✅CORRECT ANSW-allocates resources through the decentralized decision of
many households and firms as they interact in markets
invisible hand of the market ✅✅CORRECT ANSW-Adam Smith's The Wealth of Nations explains
households and firms act as if led by this to promote general economic well-being
7th Principle of Economics ✅✅CORRECT ANSW-governments can sometimes improve market
outcomes
Role of Government ✅✅CORRECT ANSW-enforce property rights
Market Failure ✅✅CORRECT ANSW-when the market fails to allocate society's resources
efficiently
externalities ✅✅CORRECT ANSW-when the production or consumption of a good affects
bystanders
Market power ✅✅CORRECT ANSW-a single buyer or seller has substantial influence on market
price (e.g. monopoly)
public policy ✅✅CORRECT ANSW-___________ may promote efficiency.
government ✅✅CORRECT ANSW-_____________ may alter outcomes to promote equity
8th Principle of Economics ✅✅CORRECT ANSW-a country's standard of living depends on its
ability to produce goods and services
productivity ✅✅CORRECT ANSW-the amount of goods and services produced per unit of labor
, 9th Principle of Economics ✅✅CORRECT ANSW-prices rise when the government prints too much
money
inflation ✅✅CORRECT ANSW-increases in the general price levels which are, in the long run,
almost always caused by excessive growth in the quantity of money which causes the value of
money to fall
10th Principle of Economics ✅✅CORRECT ANSW-society faces a short-run tradeoff between
inflation and unemployment
two roles of economists ✅✅CORRECT ANSW-scientists (try to explain the world) and policy
advisors (try to improve the world)
scientific method ✅✅CORRECT ANSW-the dispassionate development and testing of theories
about how the world works
assumptions ✅✅CORRECT ANSW-simplify the complex world to make it easier to understand
model ✅✅CORRECT ANSW-a highly simplified representation of a more complicated reality
microeconomics ✅✅CORRECT ANSW-the study of how households and firms make decisions and
how they interact in markets
macroeconomics ✅✅CORRECT ANSW-the study of economy-wide phenomena, including
inflation, unemployment, and economic growth
positive statements ✅✅CORRECT ANSW-describe the world as it is
normative statements ✅✅CORRECT ANSW-describe the world as it should be
Production Possibilities Frontier (PPF) ✅✅CORRECT ANSW-a graph that shows the combinations
of two goods the economy can possibly produce given the available resources and the available
technology