Midterm 1 Flashcards
Economics
The study of how society manages its scarce resources
First principle
People face trade offs
Efficiency vs equality
Efficiency
The property of society getting the most it can from scarce resources
Ex: size of pie
Equality
Distributing economic prosperity uniformly among members of society
Ex: how the pie is divided up into individual slices
Opportunity cost
Whatever must be given up to obtain some item
Rational people
People who systematically and purposefully do the best they can to achieve their objectives
- rational people think at the margin
- they make decisions by comparing benefits and costs
Incentive
Something that induces a person to act
Market economy
An economy that allocates resources through the decentralized decisions of many firms and households as they interact in markets for goods and services
- guided by an invisible hand
Property rights
The ability of an individual to own and exercise control over scarce resources
Market failure
A situation in which a market left on its own, fails to allocate resources efficiently
Externality
The impact of ones actions on the well being of a bystander
- one cause of market failure
Market power
The ability of a single economic actor to have substantial influence on market prices
- another cause of market failure
- one person has control over something everyone needs
Productivity
The quantity of goods and services produced from each unit of labor input
A countries standard of living depends on what
It’s ability to produce goods and services
Inflation
An increase in the overall level of prices in the economy
- when the government prints too much money
Society faces short run trade off between what
Inflation and unemployment
Business cycle
Fluctuations in economic activity such as employment and production
The role of assumptions
Assumptions can simplify the complex world and make it easier to understand
Circular flow diagram
A visual model of the economy that shows how dollars flow through markets among households and firms
The two markets households and firms interact in
Markets for goods and services and market for factors of production
The production possibilities frontier
A graph that shows the combinations of output that the economy can possibly produce given the available factors of production and the available production technology
Microeconomics
The study of how households and firms make decisions and how they interact in markets
Macroeconomics
The study of economy wide phenomena, including inflation, unemployment, and economic growth
Positive statements
Claims that attempt to describe the world as it is
- descriptive
Normative statements
Claims that attempt to prescribe how the world should be
- prescriptive
Absolute advantage
The ability to produce a good using fewer inputs than another producer
Comparative advantage
The ability to produce a good at a lower opportunity cost than another producer
- impossible to have CA in both goods
- the driving force of specialization
Why does trade benefit everyone
Bc it allows people to specialize in activities in high they have a comparative advantage
What is necessary for both parties to gain from trade
The price at which they trade must lie between the two opportunity costs
Imports
Goods produced abroad and sold domestically
Exports
Goods produced domestically and sold abroad
Market
A group of buyers and sellers of a particular good or service
- buyers determine demand
- sellers determine supply
Competitive market
A market in which there are so many buyers and so many Sellers that each has a negligible impact on the market price
To be perfectly competitive:
The goods offered for sale are all exactly the same
The buyers and sellers are so numerous that no single buyer or seller has any influence over the market price
Price takers
Buyers and sellers in perfectly competitive markets bc they must accept the price the market determines
Markets that aren’t perfectly competitive are
Monopolies
Quantity demanded
The amount of the good that buyers are willing and able to purchase
Law of demand
Other things equal, when the price of a good rises, the quantity demanded of the good falls and when the price falls the quantity demanded rises
Demand schedule
Shows the relationship between the price of a good and the quantity demanded, holding constant everything else that influences how much of the good consumers want to buy.
Demand curve
A graph of the relationship between the price of a good and the quantity demanded
Market demand at each price is what
The sum of the two individual prices
Shifts in the demand curve
Income Price of related goods Tastes change Expectations Number of buyers
Normal good
Demand falls when income falls and vice versa
Inferior goods
Demand rises when income falls and vice versa
Ex: riding the bus
Substitutes
Two goods for which an increase in the price of one leads to an increase in demand for the other
Ex: ice cream and fro yo, hamburgers and hot dogs.
Complements
Two goods for which an increase in the price leads or a decrease in demand for the other
Ex: hot fudge and ice cream, cars and gas, PB and
shift
Change in something not measured on either axis
Movement
Change in something on one of the axis’s.
Quantity supplied
The amount of a good that sellers are willing and able to sell
Law of supply
Other things being equal, the quantity supplied of a good rises when the price of a good rises.
Supply schedule
A table that shows the relationship between the price of a good and the quantity supplied
Supply curve
A graph of the relationship between the price of a good and quantity supplied
Market supply is what
The sum of the supplies of all sellers
shifts in the supply curve
Input prices
Technology
Expectations
Number of sellers
Equilibrium
A situation in which the market price has reached the level at which quantity supplied equals quantity demanded
Surplus
The quantity supplied is greater than quantity demanded
Shortage
Quantity demanded is greater than quantity supplied
- excess demand
Law of supply and demand
The claim that the price of any good adjusts to bring the quantity supplied and the quantity demanded for that good into balance
3 steps to analyze change in equilibrium
- Decide whether the event shifts the supply or demand curve or both
- Decide in which direction the curve shifts
- Use the supply and demand diagram to see how the shift changes the equilibrium price and quantity.
Supply refers to
The position of the supply curve
Shift
Quantity supplied refers to
The amount suppliers wish to sell
Movement
Scarcity
Society has limited resources and therefore cannot produce all goods and services people wish to have