Economics Flashcards
How does a price increase affect supply?
When the prices of an item increases supply increases- because more sellers are willing to sell.
What is a supply curve shift?
When supply changes due to something OTHER THAN PRICE
What are the characteristics of a positive supply curve shift (shift right)?
- Price decreases / Supply increases at each price point
- Increase Equilibrium GDP
- Number of sellers increases - market can get flooded
- Unemployment decreases
- Profits increase
*Causes: Government subsidies or technology improvements that decrease costs for suppliers
What are the characteristics of a negative supply curve shift (shift left)?
- Price Increase / Supply decreases at each price point
- Decrease Equilibrium GDP
- Profits decrease
- Unemployment increases
*Causes: Shortage of gold- so less gold watches are made; wars or crises in rice-producing countries means there is less rice on the market
How does price affect the demand for an item?
- When price increases, demand decreases
- When price decreases, demand increases
What is a Demand Curve Shift?
When demand changes due to something OTHER THAN PRICE
What is a Positive Demand Curve Shift (Shift Right)?
- GDP Increases
- Profits Increase
- Unemployment decreases
- Prices increase
- Causes: 1) Price of substitutes go up: price of beef rises, so people buy more chicken
2) Future price increase is expected: War in Middle East, so people go out and buy gas
3) Market expands: new free health care plan, so demand at clinic rises
What is a Negative Demand Curve Shift (Shift Left)?
- Price decreases / Demand decreases at each price point
- GDP decreases
- Profits decrease
- Unemployment increases
- Casues: 1) Price of complement goes up: price of beef goes up, less demand for A-1 steak sauce
2) Boycott: Company commits social blunder- consumers boycott
3) Consumer income rises, so demand for inferior goods drops as people have > $ to spend
4) Consumer tastes change
5) Contraction - less spending decreases equilibrium GDP
What is the Marginal Propensity to Consume?
How much you spend when your income increases. The MPC is generally less than one bc ppl tend to save part of their income.
MPC = Change in Spending / Change in Income
What is the Marginal Propensity to Save?
How much you save when income increases
MPS = Change in Savings / Change in Income
OR
MPS = 1 - Marginal Propensity to Consume
What is the Multiplier Effect & how is it calculated?
Refers to the fact that an increase in consumer spending produces a multiplied increase in the level of economic activity.
Multiplier = 1 / (1 - MPC)
Change in Real GDP = Multiplier = Change in Spending
How does increased spending by consumers and the government affect the demand curve?
As spending by consumers or the government increases- the demand curve increases (shifts right).
How does spending change due to the multiplier effect?
The increase in demand ends up being larger than the amount of additional income spent in the economy due to the multiplier effect. One consumer spends money- which:Increases the income of a businessIncreases the income of a vendorIncreases income of employeesIncreases tax revenue
Ex: If MPC = 0.8, then an increase in spending of $100 = $500 increase in real GDP.
**[1/(1-0.8)] x $100 = $500
How is Price Elasticity of Demand calculated?
% Change in Quantity Demand / % Change in Price
Under elastic demand- how does price affect revenues?
Price increases- Revenue decreases
Price decreases- Revenue increases
What conditions would indicate Elastic Demand?
Many substitutes (luxury items)
Considered elastic if elasticity is greater than 1
10% drop in demand / 8% increase in price : 1.25 (Elastic)
Price increases- Revenue decreases
Price decreases- Revenue increases
How does revenue react to price under Inelastic Demand?
Price increases- Revenue increases
Price decreases- Revenue decreases
What conditions would indicate Inelastic Demand?
Few substitutes (groceries- gasoline)
Considered inelastic if coefficient of elasticity is less than 1
5% drop in demand / 10% increase in price : .5 (inelastic)
Price increases- Revenue increases
Price decreases- Revenue decreases
What is Unitary Demand?
Total revenue will remain the same if price is increased
Considered unitary if coefficient of elasticity : 1
How is Income Elasticity of Demand calculated?
% Change Quantity Demanded / % Change in Income
Normal goods greater than 1 (demand increases more than income)
Inferior goods less than 1 (demand increases less than income)
What conditions occur under periods of inflation?
Interest rates increase
Reduced demand for loans
Reduced demand for houses- autos- etc.
Value of bonds and fixed income securities decrease
Inferior good demand to increase
Foreign goods more affordable than domestic
Demand for domestic goods decrease
What happens under Demand-Pull inflation?
Overall spending increases
Demand increases (shifts right)
Market equilibrium price increases
What happens under Cost-Push inflation?
Overall production costs increase
Supply decreases (shifts left)
Market equilibrium price increases
Note: Demand-Pull and Cost-Push Inflation BOTH result in market equilibrium price to increase
What is the Equilibrium Price?
The price where Quantity Supplied : Quantity Demanded
What is Optimal Production?
When Marginal Revenue : Marginal Cost
What is the result of a Price Floor?
Causes a surplus if above equilibrium price.
What is GDP (Gross Domestic Product)?
The total value of all final goods and services produced domestically, within the borders of a nation regardless of who owns the resources, in a particular time period.
*Includes the output of foreign-owned factories in the US, but excludes the output of US-owned factories operating abroad.
What is included under the income approach for calculating GDP?
Sole Proprietor and Corp Income
Passive Income
Taxes
Employee Salaries
Foreign Income Adjustments
Depreciation