UWaterloo ECON 102 Notes

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Lecture 1 Economics is a social science Study of choices that are made coping with scarcity and incentives Microeconomics choices made by individuals and businesses, and the interaction of those choices in markets ("Why are people buying more ebooks and fewer hard copies?") Macroeconomics study of national and global economies People have unlimited wants, but limited resources (time, income, wealth) More of one thing is less of another > Scarcity results in choices Ceteris Paribus assumption of nothing else changing Positive statement what IS (facts) Normative statement what SHOULD BE (opinion) Rational choice achieves greatest benefit over cost for decision maker Opportunity cost highest valued alternative that must be given up Economic surplus benefit of taking action minus the cost Lecture 2 Goods and services objects valued by people, produced to satisfy human wants Choices end up determining "what, how, and for whom" goods and services are produced Factors of production: 1. Land gifts of nature 2. Labour work time and effort (dependent on skill, known as human capital) 3. Capital tools, instruments, machinery, buildings 4. Entrepreneurship human resources that organize the above 3 Land earns rent Labour earns wages Capital earns interest Entrepreneurship earns profit Selfinterest: choices good for you Social interest: Best for society, based on efficiency and equity Efficiency: when available resources are used to produce goods at lowest possible price and greatest quantities Equity is fairness Direct relationship: x moves with y Inverse relationship: x moves against y Lecture 3 Gross Domestic Product market value of all final goods and services produced in country in given time period Final good item bought by final user (e.g. car) Intermediate good item used in production (e.g. tires) Nominal GDP: Market Price * Quantity Households sell and firms buy labor, capital and land in factor markets Firms sell and households buy goods in the goods market Consumption expenditure is total payment for consumer goods Firms upgrade and buy new capital, also known as investment Governments buy goods from firms, called government expenditure Net exports: value of exports imports

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Course Notes for ECON 102 (Macroeconomics) at the University of Waterloo.

Transcript of UWaterloo ECON 102 Notes

Page 1: UWaterloo ECON 102 Notes

Lecture 1

Economics is a social scienceStudy of choices that are made coping with scarcity and incentivesMicroeconomics ­ choices made by individuals and businesses, and the interaction of those choices in markets ("Why are people buying more e­books and fewer hard copies?")Macroeconomics ­ study of national and global economiesPeople have unlimited wants, but limited resources (time, income, wealth)More of one thing is less of another ­> Scarcity results in choicesCeteris Paribus ­ assumption of nothing else changingPositive statement ­ what IS (facts)Normative statement ­ what SHOULD BE (opinion)Rational choice ­ achieves greatest benefit over cost for decision makerOpportunity cost ­ highest valued alternative that must be given upEconomic surplus ­ benefit of taking action minus the cost

Lecture 2

Goods and services ­ objects valued by people, produced to satisfy human wantsChoices end up determining "what, how, and for whom" goods and services are producedFactors of production:

1. Land ­ gifts of nature2. Labour ­ work time and effort (dependent on skill, known as human capital)3. Capital ­ tools, instruments, machinery, buildings4. Entrepreneurship ­ human resources that organize the above 3

Land earns rentLabour earns wagesCapital earns interestEntrepreneurship earns profitSelf­interest: choices good for youSocial interest: Best for society, based on efficiency and equityEfficiency: when available resources are used to produce goods at lowest possible price and greatest quantitiesEquity is fairnessDirect relationship: x moves with yInverse relationship: x moves against y

Lecture 3

Gross Domestic Product ­ market value of all final goods and services produced in country in given time periodFinal good ­ item bought by final user (e.g. car)Intermediate good ­ item used in production (e.g. tires)Nominal GDP: Market Price * QuantityHouseholds sell and firms buy labor, capital and land in factor marketsFirms sell and households buy goods in the goods marketConsumption expenditure is total payment for consumer goodsFirms upgrade and buy new capital, also known as investmentGovernments buy goods from firms, called government expenditureNet exports: value of exports ­ imports

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Left side = right side... GDP = total expenditure = total incomeGDP = C + I + G + X ­ M

Consumer spending + Investments + Government expenditure + exports ­ importsDepreciation: decrease in value of firm's capital (from wear and tear)Gross investment: total amount spend on upgrades and new purchasesNet investment = Gross investment ­ depreciationIncome includes wages and interest, rent, profit, etc.Adjust income with indirect tax to get to market priced net domestic income. Then add depreciation to get gross domestic incomeReal GDP: Value of goods and services when priced at a base yearWe prefer real GDP to remove any influences of rising prices and cost of livingVariable Growth: (NEW ­ OLD) / OLDReal GDP per person: rGDP / Population ­ tells us value of goods that average person can enjoyFactors not included in GDP:

Household productionSecondhand activitiesHealth / life expectancyLeisure timeEnvironmental qualityPolitical freedom / social justice

GDP comparison worldwide is hard due to currencies and different goods valuesPotential GDP: When all factors of income are being 100% usedReal GDP fluctuates: expansion and recession

Lecture 4

Unemployment results in:Lost incomes and production

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Lost human capital (people lose skills)

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To be unemployed, one must be:Without work, but have made specific efforts to find job within 4 weeksWaiting to be called back to a job from which one has been laid offWaiting to start a new job within 4 weeks

Labour Market Indicators:Unemployment rate

# Unemployed / Labor ForceInvoluntary P.T. Rate

# Involuntary P.T / Labor forceLabor force participation rate:

Labor force / Working Age Pop.Employment : Population ratio

# employed / Working Age Pop.Limitations:

Marginally attached worker: Neither looking nor working, but has indicated desire and availability for a jobDiscouraged worker: Has given up searching due to repeated failurePart time workers who want full time jobs

Officially partly unemployedTypes of unemployment:

Frictional ­ Arises from workers wanting to switch jobs, creation and destruction of jobsCompletely normal

Structural ­ created by changes in technology and foreign competitionCyclical ­ As a result of expansions and recessionsNatural ­ only frictional and structural

N.U. rate = # N.U / labor forceFull employment is when unemployment rate = N.U. rateOutput gap = Real GDP ­ Potential GDPWhen output gap is negative, unemployment > N.U.

Lecture 5

Price level: average level of prices and value of moneyInflation and deflation are problematic because they:

Redistribute income and wealthLower real GDP and employmentDivert resources from production

Consumer Price Index: measures average of prices paid by urban consumers for "fixed" basket of goodsCalculating CPI:

1. Find cost of CPI basket at base year prices2. Find cost of CPI basket at current year prices3. CPI = (Current Year / Base Year) * 100

Inflation Rate: Plug CPI into growth formula((CPICurrent ­ CPIPrevious) / CPIPrevious) * 100

CPI Biased due to:New goods bias ­ goods not available in base year. If they are more expensive than what they're replacing, they upwardly bias the CPIQuality bias ­ sometimes price goes up due to quality improvement, not inflationCommodity substitution bias ­ fixed basket does not take into account substitutions away from higher priced goodsOutlet substitution ­ people buy from cheaper places

Alternative Price Indexes:GDP Deflator

(NominalGDP / RealGDP) * 100Broader than CPI as it includes all factors of GDPToo broad for cost of living

Chained price index for consumption(Nominal consumption expenditure / real consumption expenditure) * 100

These both are period based, so they overcome 4 sources of bias aboveCore inflation ­ inflation of all goods excluding volatile elements (food, fuel)

Attempts to reveal underlying inflation trendCommonly measured with core CPI inflation rate

To find real variable, just do: Nominal variable / GDP deflatorDon't do this for interest

Lecture 7

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A market is anywhere an economic exchange occursCompetitive market ­ has many buyers and sellers, so no one entity can influence the priceMoney price ­ amount of money needed to purchase goodRelative price ­ ratio of money price to money price of next best alternative good... the opportunity cost of the goodFactor market ­ any place where resources are bought and soldProduct market ­ where products are bought and soldQuantity demanded ­ amount that consumers plan to buy during particular time and priceLaw of Demand: higher the price, lower the quantity demanded, and vice versa

Results from:Substitution effect ­ when people seek lower priced alternatives, demand for original dropsIncome effect ­ when price increases relative to income, it can no longer be afforded

Demand curve: X­>Quantity Y­>PriceAlso known as willingness and ability to pay curve

Market demand ­ sum of individual demandsIf price changes, there is a movement along the demand curveIf anything else changes, there is a change in demand (the curve moves)Six demand changing factors:

1. Price of related goods2. Expected future prices3. Income4. Expected future income and credit5. Population6. Preferences

PriceSubstitute ­ good that can be used in place of anotherComplement ­ a good used in conjunction with another

Expected future priceIf price is expected to go up, current demand increases

IncomeNormal good: demand increases as income increasesInferior good: demand decreases and income increases

Expected future incomeDemand increases if more money is a potential

PopulationLarger population means larger demand

PreferencesPeople with same income have different preferences, thus different demands

Quantity supplied ­ amount that producers plan to sell during given time at particular priceLaw of Supply: Higher the price, higher quantity supplied, and vice versaSupply curves double as minimum­supply­price curvesMarket supply ­ sum of individual suppliesPrice change: movement along supply curveOther factor change: movement of supply curveSix supply changing factors:

Prices of factors of productionPrices of related goodsExpected future pricesNumber of suppliersTechnologyState of nature

If production becomes expensive, supply decreasesIf substitute goods become cheaper, supply increasesIf complement goods become cheaper, supply decreasesIf prices are expected to go up, supply decreases until prices do go upIf number of suppliers go up, overall supply increasesAdvances in technology increase supplyBad states of nature decrease supply (hurricanes, etc.)

Lecture 8

Surplus is when demand < supplyShortage is when demand > supplyEquilibrium is when demand = supplySurplus forces price down, so that consumers will buyShortage forces price up, causing consumers to buy less and making it more worthwhile for suppliers

Lecture 9

Study of finance looks at how households and firms use financial resources

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Study of money looks at how it is used by households and firms, how much is held, how banks create and manage it, how quantity influences economyPhysical capital ­ items already produced used in production such as tools and machinesFinancial capital­ funds used by firms to buy physical capitalWealth ­ value of all things that people ownSavings ­ non taxed income that is not used for consumptionSavings increase wealthWealth increases when market value of assets rises (capital gains), and decreases when it falls (capital losses)Savings are used to fund 3 financial markets:

Bond marketStock marketLoan market

Financial institution ­ firm that operates on both sides of financial capital markets as a borrower and lenderCommercial banksGovernment mortgage lendersPension fundsInsurance companies

Net worth: Lent ­ BorrowedIf positive, solvent institution can remain in businessNegative, insolvent institution must shut down

Interest rate is interest received expressed as percentage of asset priceNOMINAL I.R. = (interest / asset price) * 100

Market for loanable funds ­ Aggregate of all 3 financial marketsFinance investment is funded from

Household SavingsGovernment budget surplus

Borrowing from rested of worldHousehold income is comprised of Consumtion, Savings and TaxesGDP = C + I + G + (X­M) = Household incomeInvestment = S + (T­G) + (M­X)Real Interest Rate = Nominal rate ­ inflation rate

Opportunity cost of borrowingNominal interest rate in each country:

i = r + 3.14i = nominal, r = real, 3.14 = expected inflation

Quantity of loanable funds demanded depends on:Real interest rateExpected profit

As real interest increases, quantity demanded for loanable funds decreasesAs expected profit from new capital increases, amount of investment is greater, and so demand for loanable funds increasesQuantity of loanable funds supplied depends on:

Real interest rateDisposable incomeExpected future incomeWealthDefault risk

As real interest increases, funds supplied increasesSupply of funds increases when:

Expected future income decreasesWealth decreasesDefault risk falls

Government budget surplus increases supply of funds, and deficit increases demandLoanable funds market is globalLenders want to earn the highest interest rateBorrowers want to pay the lowest possible interest rateFunds flow in to the country with the highest interest rate, and out of the country with the lowest interest rateLoanable funds are tied with net exportsNegative net exports means that world supplies funds to this country

Quantity of loanable funds is greater than national savingPositive net exports means country supplies funds to rest of world

Quantity of loanable funds in this country is less than national savingInterest rate differentials:

Time preferences for consumptionRiskExpected inflation

r = r* + I + RPr = nominal interest rater* = real interest rateIP = inflation rateRP = risk premium

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Lecture 11

Money ­ any commodity or token generally acceptable as method of settling debtAlso functions as a:

Medium of exchangeObject generally accepted in exchange for goods and servicesAbsence of this would require barter, which is rare due to the need of two people wanting the same thing

Unit of accountAgreed measure to state prices of goods and services

Store of valueCan be held for a time and still be used for exchange

Money consists of:Currency ­ the notes and coins held by individuals and businessesDeposits at banks and other depository institutions

Official measures in Canada are:M1 ­ consists of currency and chequable deposits held by individuals and businesses

Basically coins, notes, and things like savings and chequing accountsM2 ­ M1 plus all other deposits (non­chequable and fixed term)

Everything in M1 is a means of payment, thus is moneySome things in M2 are liquid assets

Assets that can be easily converted without losing valueCheques are not money, simply an instruction to transfer moneyCredit cards are not money, simply loans that must be repaid with money

Banking system consists of:Depository institutionsThe Bank of Canada

Depository institutions take deposits from and loan to households and firmsChartered banks (CIBC, TD, Scotia, RBC)Credit unions (Meridian)Trust and mortgage loan companies

They maximize wealth by having a loan interest > savings interestChartered bank assets are:

Reserves ­ currency in bank vault, and money at Bank of CanadaLiquid assets ­ Treasury and commerical billsSecurities ­ long term government bonds and other bondsLoans ­ commitments of fixed amounts of money for agreed upon periods of time

Depository institutions are beneficial because they:Create liquidityPool riskLower borrowing costLowering cost of monitoring borrowers

Bank of Canada regulates Canada's depository institutions and control quantity of moneyIt is:

Banker to the banks and governmentAccept deposits from banks

Lender of last resortCan loan to banks if they are short of reserves

Sole issuer of bank notesThe currency notes that are used

Assets include: (what they have)Government securitiesLast resort loans to banks

Liabilities are: (things they use, but don't "own")Bank of Canada notesDeposits of banks and governments

Monetary base includes:Liabilities of Bank of Canada (plus coins from the Mint)Notes outside the BoC, deposits at the BoC, coins

The base is changed through an open market operationOpen Market Purchase:

When the BoC buys government securities, it buys from the banks. BoC pays banks by adding money to their reservesOpen Market Sale:

BoC sells securities to banks, and takes money from their reservesQuantity of deposits that can be created by a bank is limited by:

Monetary baseDesired reservesDesired currency holding

Actual reserves ­ notes and coins in vault, and deposits at BoCDesired reserves ­ notes and coins in vault, planned deposits at BoC

Desired reserve ratio ­ Bank's reserves : total planned deposits that bank will hold

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Required reserves ­ notes and coins in vault, required deposits at BoCRequired reserve ratio ­ Bank's reserves : required deposits

Excess reserves = Actual reserves ­ desired reservesDesired currency holding ­ people hold some fraction of their money. As total quantity of money increases, quantity of currency held increasesCurrency drain ratio: Currency : Deposits (C/D)Money Creation Process:

1. BoC conducts open market purchase2. Banks now have excess reserves, so they loan this out3. Deposits increase; money quantity increases, new money is used to make payments, some of the new money remains on deposit, some is currency drain

4. Deposits have increased, so desired reserves increase5. Excess reserves decrease, but are still positive. Repeat.

Money multiplier ­ ratio of change in quantity of money to change in monetary baseDepends on desired reserve ratio and currency drain ratioSmaller rations ­> larger money multiplier

Money multiplier = (1 + C/D) / (C/D + R/D)Where C/D = currency drain ratio, R/D = desired reserve ratio

Lecture 12

Demand for money is the relationship between quantity of real money demanded and the nominal interest rateMoney demand depends on:

Price levelNominal interest rateReal GDPFinancial Innovation

Price level increase increases the quantity of nominal money but not real moneyNominal money ­ amount of money measured in $Real money ­ Nominal money / price level

Quantity of nominal money proportional to price levelNominal interest rate is opportunity cost of holding wealth as money rather than as interest earning assetRise in nominal interest rate causes money demand to decreaseReal GDP increase increases expenditure, increasing quantity of real money heldFinancial innovations that help lower cost of switching assets to money will decrease demand for real moneyNominal interest rate causes the quantity demanded to change, but changes in GDP or financial innovations cause the demand to shiftMoney supply is set by BoC, independent of interest rate (vertical line)In the short run:

BoC decreases money supply, so there is shortage of moneyPeople sell bonds, increasing the interest rate

BoC increases money supply, so there is excess moneyPeople buy bonds, interest rate falls

HAVE SOME SHORT/LONG RUN STUFFQuantity Theory of Money:

In long run, increase in quantity of money brings equal percentage increase in price levelVelocity of circulation: average number of times in a year dollar is used to purchase goods and services in GDPV = PY / M

where V is velocity of circulation, P is price level, Y is real GDP, M is quantity of moneyEquation of exchange states that MV = PYEquation of exchange becomes quantity theory of money if M does not influence V or Y (i.e the long run)In the long run:

Inflation rate = Money growth rate ­ real GDP growth

Lecture 13

We get foreign currency in the foreign exchange marketThe price of exchange is called the foreign exchange rateThe foreign exchange market is competitiveWhen the value of a currency rises in terms of another, it appreciates, otherwise it depreciatesFactors of demand for once currency affect the supply of another currencyCanadian dollar demand depends on:

The exchange rate (movement along curve)Foreign demand for Canadian exports (shift)Canadian and foreign interest rates (shift)Expected future exchange rate (shift)

Canadian dollar supply depends on:The exchange rateCanadian demand for foreign importsCanadian and foreign interest rates

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Expected future exchangeCanadian interest rate differential: Canadian interest rate ­ foreign interest rate

Lecture 14

Interest rate parity: equal rates of return on two currenciesPurchasing power parity: when two currencies can buy the same goods with the same quantity of moneyReal exchange rate = (Nominal Exchange Rate * Domestic Price Level) / Foreign Price LevelLong Run: Exchange Rate = N.E.R * (F.P.L / D.P.L)Flexible exchange rate ­ determined by demand and supply with no intervention from bankFixed exchange rate ­ active intervention from bank by buying and selling Canadian dollarsCrawling peg is similar to fixed, except the target value changes

Used to avoid running out of reserves, as can happen with fixedCurrent Account:

Exports and importsNet interest paid abroadNet transfers (e.g. foreign aid payments)Balance = Exports ­ Imports + Net Interest Income + Net Transfers

Government Sector = Taxes ­ Government SpendingPrivate Sector = Savings ­ InvestmentsNX = (T­G) + (S­I)Capital and Financial Account:

Foreign investment in Canada ­ Canadian investment abroadOfficial settlements account = change in Canadian official reserves (government holding of foreign currency)Official Settlements = ­1 * (Current + Capital and Financial)Net borrower ­ country that borrows from worldNet lender ­ country that lends to worldCreditor nation ­ nation that has lent for its entire historyDebtor nation ­ nation that has borrowed for its entire history

Lecture 15

Real GDP = Consumer Expenditure + Firm Investments + Government Spending + Net ExportsY = C + I + G + X ­ MAggregate demand depends on:

The price levelExpectationsFiscal and monetary policyWorld economy

Is the relationship between real GDP demanded and the price levelFiscal policy is the changing of taxes, transfer payment and purchases by the governmentMonetary policy is the change in interest rate and quantity of money

Lecture 16

Long run aggregate supply = vertical line at potential GDPShort run aggregate supply is affected by price level, money wage rate, and other factors of productionWhen potential GDP changes, both LAS and SAS shift in the same direction

Caused by full employment quantity changeChange in capital (physical or human)Technological advances

When short run shifts, due to money wage rate change or other factor price changes, LAS doesn't moveShort run macroeconomic equilibrium ­ real GDP demand = real GDP supply

Intersection of AD and SASLong run equilibrium is when real GDP = potential GDP

Intersection of AD and LASAbove full employment equilibrium: real GDP > potential GDP

Inflationary gapFull employment equilibrium: real GDP = potential GDPBelow full employment equilibrium: real GDP < potential GDP

Recessionary gapStagflation ­ when real GDP decreases and price level increasesClassical Thought: economy is self regulatingKeynesian Though: help is required from fiscal and monetary policyMonetarist Thought: self regulating, provided monetary policy is sound

Lecture 17

Demand Pull Inflation

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Begins with any factor that increases aggregate demandAD curve shifts rightwardPrice level rises, GDP increases, inflationary gap occursSAS moves left to compensate, process repeats, causing increase in price level

Cost Push InflationStarts with an increase in production costSAS shifts leftward due to increased cost, GDP decreases, price level increasesThis price level increase is one time only because:BoC stimulates aggregate demand by creating more moneyAD curve shifts right, but firms try to keep relative prices high, so process repeats

Rising price level and decreasing GDP is called stagflationIf inflation is expected, inflation proceeds as it does in the long run, along LAS lineRational expectations are the best, most informed forecasts of inflationCorrect forecast leads to full employment economyIf AD grows faster, then inflationary gap occurs, and demand pull inflationAD grows slower, recessionary gap, cost push inflation

Lecture 19

Keynesian model describes short run, fixed pricesAggregate expenditure = Real GDP

Y = C+I+G+X­MConsumption and imports are influenced by real GDPIncrease in real GDP increases aggregate expenditureIncrease in aggregate expenditure increases real GDPDisposable income = aggregate income ­ net taxes

YD = Y­TYD = Consumption + Savings

Consumption function: relation between consumption expenditure and disposable incomeC = a+b(Y­T)Net taxes are equal to autonomous taxes plus induced taxes, which vary with income (Ta and tY)C = A ­ bTa + b(1­t)Y

Saving function: relation between saving and disposable incomeMarginal propensity to consume: fraction of change in disposable income spent on consumption

delta C / delta YD = slope of consumption functionMarginal propensity to save: fraction of a change in disposable income that is saved

delta S / delta YD = slope of saving function = 1­MPCMarginal propensity to import: fraction of an increase in real GDP spent on imports

M = mY, where m = propensity, Y = change in GDP, M = change in importsAggregate planned expenditure: planned variablesInduced expenditure: consumption expenditure minus imports

Varies with real GDPAutonomous expenditure = investment + government expenditure + exports

A = I + G + XDoesn't vary with real GDP

Actual aggregate expenditure = real GDPAggregate planned expenditure can differ from actual A.E. because firms can have unplanned canges in inventoriesEquilibrium expenditure = level of aggregate expenditure that occurs when A.P.E = real GDPEquilibrium occurs when AE curve crosses 45 degreesIf AE curve is above 45 degree line:

There is an unplanned decrease in inventoriesFirms hire workers and increase production, increasing real GDP

If AE curve is below 45 degree line:Unplanned increase in inventoriesFirms fire workers and decrease production, decreasing real GDP

Lecture 20

Induced expenditures: those influenced by real GDPConsumer expenditureImports

Autonomous expenditures: those independent of real GDPInvestmentsGovernment expenditureExports

Consumption function: C = a+b(Y­T)b = marginal propensity to consume

Saving function: S = ­a + (1­b)(Y­T)(1­b) = marginal propensity to save

MPS + MPC = 1Consumption Shift Factors:

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Expected future incomeIncrease in expected income ­> increase in consumption

WealthIncrease in wealth increases consumption

Real interest rateIncreased rates reduce consumptionThis is the net effect of 1) seeing that savings yield a higher return and 2) less money needs to be saved to yield the same amount

Determinants of Investment:Interest rate

Capital expenditures are usually financed, and should be sensitive to the cost of financing (the interest rate)Profit expectations

Cost of financing vs. expected returns from new capitalImports

M = mYm = marginal propensity to import

ExportsThought to be determined by the economy of buying nation

When autonomous expenditure changes, so does equilibrium expenditure and real GDPChange in equilibrium expenditure is larger than change in autonomous expenditureMultiplier is amount by which a change in autonoumous expenditure is multiplied to determine change in equilibrium expenditure and real GDPWhy we have a multiplier:

1. Increase in an autonomous component increases A.E. and real GDP (AE = C+I+G+X­M)2. Increase in real GDP affects the induced variables (C, M)3. Increase in induced variables increases AE and GDP4. GDP has increased more than the increase in autonomous expenditure

An increase in autonomous expenditure moves the aggregate expenditure line up, causing an increase in equilibrium GDPMultiplier = 1 / (1 ­ Slope of AE curve)The price level changes because firms change production and pricesAn increase in price level means the AE curve shifts upward, and AD rightward, by an amount equal to change investment multiplied by multiplierLong run multiplier is 0

Lecture 21

Federal budget ­ annual statement of federal outlays and revenuesFiscal policy ­ the use of federal budget to achieve full employment, growth and price level stabilitySurplus: revenue exceeds outlaysDeficit: outlays exceed revenueBalance: revenue = outlaysGovernment debt: total amount gov't is borrowingIncome tax changes full employment and potential GDP

Gap between before­tax and after­tax wage rates is the tax wedgeTaxes on consumption expenditure also add to tax wedge

Income tax = 25%Tax on expenditure = 10%Tax wedge = 35%One dollar can only buy 65 cents worth of G&S

Tax on capital income lowers quantity of saving / investment and slows real GDP growth rateInterest rate that influences saving and investment is called the real after­tax interest rate

Subtracts income tax from real interestTaxes depend on nominal interest rate. True tax on interest income depends on inflation rate.Tax decreases the supply of loanable fundsAutomatic fiscal policy: triggered by state of economy, no gov't actionDiscretionary fiscal policy: policy action initiated by ParliamentTax revenues and transfer payments change automatically in response to state of economyParliament sets tax rates, but tax revenues depend on real GDP (because income depends on GDP)Transfer payments are things such as E.I.Structural surplus / deficit: budget balance that would occur at full employment and real GDP = potential GDPCyclical surplus / deficit: actual surplus / deficitGovernment expenditure and multiplier: effect of a change in gov't expenditure on real GDPCrowding out: increased gov't expenditure raises borrowing price, decreasing investmentIt is said that crowding out > multiplier, thus multiplier < 1Tax multiplier: quantity effect of change in taxes on aggregate demandRecognition lag: time taken to figure out that action is neededLaw­making lag: Parliament law passing timeImpact lag: time from law being passed to effects being felt

Lecture 22

Monetary policy instrument: variable that the BOC can directly control / closely target1. Quantity of money (monetary base)

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2. Exchange rate3. Short term interest rate

Monetary Base Exchange Rate Interest Rate

Decrease Increase Increase

Increase Decrease Decrease

Bank prefers interest rate, and targets the overnight loans rateTools used to achieve this:

Operating BandOpen market operations

Operating band = overnight rate +/­ 0.25BOC sets big bank interest rate on loans to overnight + 0.25Sets interest rate on reserves to OLR ­ 0.25When the Bank of Canada lowers the overnight loans rate:

1. Other short­term interest rates and the exchange rate fall.2. The quantity of money and the supply of loanable funds increase.3. The long­term real interest rate falls.4. Consumption expenditure, investment, and net exports increase.5. Aggregate demand increases6. Real GDP growth and inflation rate increase