Economics Flashcards
How does a P increase affect S?
Supply increases
- more sellers are willing to sell.
What is a S curve shift?
Supply changes due to
something other than P.
What are the characteristics of a
positive S curve shift (shift right)? Causes?
S increases at each P pt
Higher Equilibrium GDP
More Sellers, market can get flooded
Govt subsidies, tech improvements
What are the characteristics of a
negative S curve shift (shift left)?
Causes?
- S decreases at each P pt
- Equilibrium GDP down
Causes: Cost of production up
Shortage of gold => less gold watches made
Wars/crises in <=Asia => less rice on the market
How does P affect D for an item?
opposites
P up , D down
What is a D Curve Shift?
D changes due to something
other than price.
What is a positive D Curve Shift (Shift Right)?
Causes?
- D up at each P pt
equilibrium GDP up
Psubstitutes up
Future P increase expected War in MiddleEast => ppl buy more gas
Market Expansion, Free Obamacare => Dclinic up
What is a negative D Curve Shift (Shift Left)?
Causes?
- D decreases at each P pt
- Pcomplement up
- Consumer tastes change
- Market Contraction - less spending decreases equilibrium GDP
- Boycott, Company commits social blunder
- Consumer income rises, Dinferior goods drops
What is the Marginal Propensity to Consume?
How much you spend when your income increases
Change in Spending
Change in Income
What is the Marginal Propensity to Save?
How much you save when income increases
(1 - MPC) or Change in Savings
Change in Income
How is the multiplier effect calculated?
Change in Spending
1 - MPC
How does increased spending
by consumers and the govt
affect the D curve?
D curve shifts right
How does spending change
due to the Multiplier Effect?
The increase in D ends up being larger than the amount of addit’l income spent in economy
One consumer spends money, which increases
- income of a business
- income of a vendor
- income of employees
- tax revenue
How is Price Elasticity of D calculated?
% Change in QD
% Change in P
What conditions indicate Elastic Demand?
- Many substitutes (luxury items)
- Considered elastic if elasticity > 1
- P up => Rev down
- P down => Rev up
What conditions indicate Inelastic Demand?
- Few substitutes (groceries, gasoline)
- Considered inelastic if coefficient of elasticity < 1
- P up => Rev up
- P down => Rev down
What is Unitary Demand?
Total Revenue remains same if P is increased
coefficient of elasticity = 1
How is Income Elasticity of Demand calculated?
% Change QuantityD
% Change in Income
Normal goods > 1 (D increases more than Income)
Inferior goods < 1 (D increases less than Income)
What conditions occur under periods of inflation?
- i rates up => Dloans<span>, </span>houses, autos, etc down
- Value of bonds & fixed income securities down
- Dinferior good up
- Ddomestic goods down, Dforeign goods up
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 & Cost-Push Inflation BOTH
result in market equilibrium price to increase
What is the Equilibrium Price?
The price where Q S = Q D
What is Optimal Production?
When Marginal Revenue = Marginal Cost
What is the result of a Price Floor?
Surplus if above equilibrium price.
What is GDP (Gross Domestic Product)?
Annual value of all goods and services produced domestically at current prices by consumers, businesses, the government, and foreign companies with domestic interests
Included: Foreign company has US Factory
Not included: US company has foreign factory
What is included under
the income approach
for calculating GDP?
- Sole Proprietor and Corp Income
- Passive Income
- Taxes
- Employee Salaries
- Foreign Income Adjustments
- Depreciation