D089 WGU Principles of Economics Exam
2025
Traditional Economy - Correct Answer-A system where individuals make decisions
based on traditions, beliefs, and customs.
Command Economy - Correct Answer-A system where the government makes all the
decisions.
Market Economy - Correct Answer-A system where businesses make decisions based
on consumer demand. Innovation is encouraged and rewarded.
Mixed Economy - Correct Answer-A system where businesses make decisions based
on consumer demand, but the government makes decisions in terms of regulations,
consumer safety, and environment.
Positive Economics - Correct Answer-Focuses primarily on facts, and they can be
tested.
Normative Economics - Correct Answer-Opinions that express value or normative
judgments about economic fairness.
Production Possibilities Frontier (PPF) - Correct Answer-Shows the alternative
combinations of two goods or services that an economy can produce with the given
resources and technology when the resources are fully efficiently used at a given point
in time. Slopes downward because it is showing an increase in the number of units of
the product X. Points below the PPF are attainable.
Production Possibilities Curve (PPC) - Correct Answer-Presents potential prospects to
produce a pair of products. All points on the curve are attainable and efficient. This is
when you are using your resources to the fullest.
Homogeneous - Correct Answer-Consisting of parts all of the same kind.
Heterogeneous - Correct Answer-A resource having two different forms or skills.
Law of Increasing Opportunity Costs - Correct Answer-When all resources are being
used, an increase in the production of one good will lead to greater forgone production
of another good.
Demand Schedule - Correct Answer-A chart that shows the number of goods or
services demanded at specific prices.
Economics
, Economics
Law of Demand - Correct Answer-The common relationship that a higher price leads to
a lower quantity demanded of a certain good or service and a lower price leads to a
higher quantity demanded while all other variables are held constant.
Demand Curve - Correct Answer-Shows how much people will want at different prices.
(Downwards Price, Increase Quantity)-
Factors Affecting Demand That Make It Shift - Correct Answer-Tastes and Preferences,
Price of Complements (Bread and Jam, Printer and Ink), Price of Substitutes, Income,
Expectation (of future prices) (Inflation, News), Population (More people, Demand is
higher)
Supply Curve - Correct Answer-Shows how much sellers will supply at different prices.
(Upwards Price, Increase Quantity)
Law of Supply - Correct Answer-If all else is being constant and as price increases, the
quantity supplied also increases and vice versa. There is a positive relationship
between price and supply when all other things are held constant.
Equilibrium Quantity (Qe) - Correct Answer-The quantity of a good or service bought at
the equilibrium price. The equilibrium quantity is the quantity produced and bought
where the supply and demand curves intersect.
Price Elasticity - Correct Answer-Measures the responsiveness of quantity demanded or
quantity supplied to a change in price in percentage terms.
Price Elasticity of Demand - Correct Answer-The percentage change in price of that
good or service.
Unit Elastic - Correct Answer-Describes a situation in which a change in one variable
results in an equally proportional change in another variable.
Elastic - Correct Answer-If elasticity is greater than 1.
Inelastic - Correct Answer-If it is less that 1.
Unit Elastic - Correct Answer-Equal to 1.
Normal Good - Correct Answer-When income increases, demand for normal goods
increase. When income falls, demand for normal goods falls.
Inferior Good - Correct Answer-Associated with a negative income elasticity, while
normal goods are related to a positive income elasticity.
Price Ceiling - Correct Answer-Keeps a price from rising above a certain level.
Economics