Economics (10%) Flashcards
Elasticity of Supply
(►Q / Avg Q)
————————
(►P / Avg P)
Economic Profit
Total Revenue - Total Costs
Both Implicit and Explicit
Marginal Propensity
to Consume
MPC
Consumption
——————————
(1 - t)
(Consumpion / Disposable Income)
Fiscal Multiplier
1
———————
1 - MPC(1 - t)
GDP Deflator
Nominal GDP
————————
Real GDP
Unemployment Rate
Unemployed
———————
Labor Force
Current Account
of a Country
S - I + (T - G - R)
Savings - Investments + (Taxes - Gov’t Spending - Transfers)
Tools of Fiscal Policy
- Taxation
- Government Spending
Tools of Monetary Policy
- Open Market Operations
- Discount Rate
- Reserve Ratios
Consumer Price Index
CPI
ΣQc * Pc
————— * 100
ΣQb * Pb
Percent change of CPI basket relative to the base * 100.
What is the crowding out effect?
- Increase in government borrowing, leads to increase in int. rates, firms then reduce spending and borrowing as a result. This decreases the impact of aggregate demand of deficit spending.
- Known as crowding out b/c gov. borrowing takes place of private borrowing.
- What is a quota?
- What is an import license?
- What is a tariff?
- What is an export subsidy?
- What is a voluntary export restraint
- limit on amnt imported.
- right to export to domestic country. Gov. can sell these.
- tax on imported good collected by gov.
- Gov pymnt to firm that export goods.
- Country voluntary limits amount of a good exported. Often in hope of avoiding tariff or quotas imposed by trading partner.
- case of quota, if gov gets full value of import license, result =same as tariff.
What is a recessionary Gap?
What are good/bad investments during this time?
- excess supply. Business will see build up inventory and decrease P and Q and result.
- Long term bonds and commodities are good investments
- int. rates will decrease. So long term bonds P will increase.
- Commodities will decrease in p. so bad.
What is an inflationary gap?
Bad investments?
- Excess demand in econ
- bonds. B/c int. rates will increase.
What is stagflation?
increase in unemployment
increase in inflation.
What is the cross price elasticity?
delta in Qd / delta in P *( Price/Qd)
- Note: first part is the slope of function.
*
what does it mean to mean perfectly inelastic, or highly elasctic?
What does it mean to be elastic or low elasticity?
- Elasticity = 0. Ex:heroin. No matter what price addicts will buy.
- Elasticity = undefined. flat demand curve. Price sensitive.
- Explain cost-push inflation?
- Explain demand-pull inflation?
- results in decrease in aggregate supply
- results in increase in aggregate demand
- see written note cards for graphs.
real exchange rate (d/f) =?
- nominal exchange rate (d/f) * (CPI f/CPI d)
- Ex: At a base period, the CPis ofthe U.S. and U.K. are both 100, and the exchange rate is $ 1 .70/£. Three years later, the exchange rate is $ 1 .60/£, and the CPI has risen to 1 1 0 in the United States and 1 1 2 in the U.K. What is the real exchange rate?
- A: 1.60* (112/110) = $1.629
No arbitrage relation, int. rate parity =?
Forward/Spot = (1+ int. ratedomestic) /(1+int. rateforeign)
- If spot and int expressed as domestic/foreign, then domestic int. rate goes in numerator on right hand side of eqn. If given as foreign/domestic, then foreign goes in numerator in right side.
- Ex: Consider two currencies, the ABE and the DUB. The spot ABE/DUB exchange rate is 4.5671, the 1-year riskless ABE rate is 5o/o, and the 1-year riskless DUB rate is 3o/o. What is the forward exchange rate that will prevent arbitrage profits?
Answer:
Rearranging our formula, we have:
forward = spot [1 +IABE] and we can calculate the forward rate as l +Ious
forward=4.5671 (1.05)=4.6558(AB%uB) 1.03
Note that the forward rate is greater than the spot rate by 4.65 58 I 4.5671 - 1 = 1 .94%. This is approximately equal to the interest rate differential of 5o/o - 3o/o = 2o/o. The currency with the higher interest rate should depreciate over time by approximately the amount o f the interest rate differential.
Crowding-Out Effect
When a government budget deficit causes a decrease in private investment.
What is consumer surplus?
Difference between value consumer sees and amnt they pay.
federal reserve most often uses what tool to manipulate Ms?
what tools does fed have to manipulate Ms?
- Policy rate (discount rate).
- Reseve requirements
- Open market operations - bying and selling securties?
custom union?
free trade area but you have trade restrictions for non union members.