Warm-up – Wed. 4/9Warm-up – Wed. 4/9 Easter is Sunday, Easter is Sunday,

4/20!4/20!

Describe the Describe the priceprice of Easter candy on of Easter candy on Monday, 4/21, compared to Saturday Monday, 4/21, compared to Saturday afternoon, 4/19?afternoon, 4/19?

Explain the Explain the needneed for Easter candy on for Easter candy on Monday 4/21, compared to Monday 4/21, compared to Saturday afternoon, 4/19?Saturday afternoon, 4/19?

Supply and Supply and DemandDemandNotes, Graphing, and Lots and Lots Notes, Graphing, and Lots and Lots of Practice!!!of Practice!!!

““What is What is Economics?”Economics?”

Reading to get a handle on this Reading to get a handle on this topic. It might be a quick review for topic. It might be a quick review for you! Grab a highlighter and a pen if you! Grab a highlighter and a pen if you don’t already have one out.you don’t already have one out.

The Basic Graph The Basic Graph (aka “The Starting (aka “The Starting Point”)Point”)

What do the letters What do the letters mean?mean?

X axis = Q = X axis = Q = Quantity Quantity

Y axis = P = Y axis = P = PricePrice

D = D = DemandDemand

S = S = SupplySupply

The Basic Graph The Basic Graph (aka “The Starting (aka “The Starting Point”)Point”)

Equilibrium

What do the letters What do the letters mean?mean?

““The Intersection” = The Intersection” = EquilibriumEquilibrium (shows (shows perfect supply/demand)perfect supply/demand)

Q* = Q* = Quantity Demanded/Supplied (at Quantity Demanded/Supplied (at the equilibrium price) the equilibrium price)

P* = P* = Equilibrium Price Equilibrium Price

Definition for SupplyDefinition for Supply(represents Producers)(represents Producers)

The total amount of a good or The total amount of a good or service producers are willing service producers are willing and able to and able to makemake at all at all pricesprices at a at a specific point in timespecific point in time..

Law of SupplyLaw of Supply

States that as the price States that as the price increasesincreases the quantity supplied the quantity supplied also also increasesincreases. The same . The same applies for a applies for a decreasedecrease in price. in price.

or

DETERMINANTSDETERMINANTS – Things – Things That Could That Could ShiftShift (change) (change) the the SupplySupply of a Product of a Product

Price and availability of Price and availability of landland, , laborlabor and/or and/or capitalcapital (factors of (factors of production) production) (e.g.: OJ v. cold winter)(e.g.: OJ v. cold winter)

New New technologytechnology (e.g.: cotton gin)(e.g.: cotton gin)

Number of other Number of other sellerssellers (e.g.: (e.g.: grocery stores in M’town)grocery stores in M’town)

DETERMINANTSDETERMINANTS – Things – Things That Could That Could ShiftShift (change) (change) the the SupplySupply of a Product, of a Product, cont.cont.

Price of Price of other goodsother goods someone someone could produce could produce (e.g.: fresh fruits (e.g.: fresh fruits and/or vegetables in the summer v. and/or vegetables in the summer v. winter)winter)

TaxTax Policy Policy (e.g.: GOVERNMENT if (e.g.: GOVERNMENT if increase then overall cost goes up)increase then overall cost goes up)

Graphing a Graphing a ShiftShift in Supply in Supply(start w/ the basic graph)(start w/ the basic graph)

S2

S2

Graphing a Graphing a ShiftShift in in Supply Supply The NEW supply line (S2) is The NEW supply line (S2) is

called the called the Supply CurveSupply Curve.. It is a graphic representation of It is a graphic representation of

supply!supply!

That’s CrazyThat’s Crazy – it’s a – it’s a straight line, but don’t straight line, but don’t let that throw you off! let that throw you off!

Graphing a Graphing a ShiftShift in Supply in Supply (show the new (show the new price/quantity)price/quantity)

S2

P2

Q2

E2

Definitions for DemandDefinitions for Demand (represents Consumers)(represents Consumers)

The total amount consumers The total amount consumers are willing and able to are willing and able to buybuy at at all all pricesprices at a at a specific point in specific point in timetime..

Law of DemandLaw of Demand States that as the price States that as the price

increasesincreases the quantity the quantity demanded demanded decreasesdecreases. . Same applies for a Same applies for a decreasedecrease in price.in price.

or

DeterminantsDeterminants - things that - things that could could shiftshift (change) the (change) the DEMAND for a productDEMAND for a product

Tastes and Tastes and fadsfads (Q’back jerseys)(Q’back jerseys)

IncomeIncome (BMW dealerships in area)(BMW dealerships in area)

Number of Number of buyersbuyers (Burger King)(Burger King)

DeterminantsDeterminants - things that - things that could could shiftshift (change) the (change) the DEMAND for a product, DEMAND for a product, cont.cont.

FutureFuture price price expectationsexpectations (small cars - when fuel prices go up)(small cars - when fuel prices go up)

Price and availability ofPrice and availability ofSubstitutesSubstitutes (“Uggs” v. “Fuggs”)(“Uggs” v. “Fuggs”)

ComplimentsCompliments (jam/jelly w/ PB)(jam/jelly w/ PB)

Graphing a Graphing a ShiftShift in Demand in Demand(start w/ the basic graph)(start w/ the basic graph)

D2

D2

Graphing a Graphing a ShiftShift in in Demand Demand

The NEW Demand line is called the The NEW Demand line is called the Demand CurveDemand Curve. .

It is a graphic representation of demand!It is a graphic representation of demand!

That’s Right Folks That’s Right Folks – – it’s also a straight line! it’s also a straight line!

Graphing a Graphing a ShiftShift in Demand in Demand (show the new (show the new price/quantity)price/quantity)

Q2

D2

P2E2

Closer - Wednesday, 4/9Closer - Wednesday, 4/9Please note the following on your closer worksheet:Please note the following on your closer worksheet:

Things you learned todayThings you learned today

Ways you can use this material in the futureWays you can use this material in the future

Nugget of advise to future studentsNugget of advise to future students

Let’s Let’s Practice!Practice!

Now that you’ve got the idea of supply, Now that you’ve got the idea of supply, demand and their determinants,demand and their determinants,

IntroducingIntroducing

I R D LI R D LHe will be your best friend!He will be your best friend!

Always remember his name so you Always remember his name so you know whether to shift right or leftknow whether to shift right or left(for either supply or demand). . .(for either supply or demand). . .

I R D LI R D L stands for stands for . . . . . .

IIncreasencreaseRRightightDDecreaseecreaseLLefteft

You always want to You always want to ask the ask the same series of same series of questionsquestions to help you to help you

understand the understand the information that you information that you

will be graphing.will be graphing.

Questions to Prepare for Questions to Prepare for GraphingGraphing

What is the What is the marketmarket you are graphing? you are graphing? (good/service)(good/service)

Which Which determinantdeterminant has changed? has changed? Does it affect Does it affect supply or demandsupply or demand?? Does supply/demand Does supply/demand increase or decreaseincrease or decrease?? Does the supply/demand Does the supply/demand curve shiftcurve shift right or right or

left?left?

Note that questions #2 and #3 can be switched!Note that questions #2 and #3 can be switched!

Let’s Let’s Graph!Graph!

Imagine you are reading a Imagine you are reading a newspaper and come across the newspaper and come across the

following headlines . . .following headlines . . .

Two Major Two Major Computer Computer

Manufacturers Manufacturers Build Five New Build Five New

FactoriesFactories

Two Major Computer Two Major Computer Manufacturers Build Five New Manufacturers Build Five New

FactoriesFactories What is the What is the marketmarket you are graphing? you are graphing? ComputersComputers Which Which determinantdeterminant has changed? has changed? Price and Availability of Price and Availability of CapitalCapital Does it affect Does it affect supply or demandsupply or demand?? SupplySupply Does supply Does supply increase or decreaseincrease or decrease?? Increase ↑Increase ↑ Does the supply Does the supply curve shiftcurve shift to the right or left? to the right or left? Right →Right →

SupplySupply of computers of computers increasesincreases because more because more factories are built.factories are built.

S2

P2

Q2

E2

Doctors announce Doctors announce benefits of eating ice benefits of eating ice

cream dailycream daily

Try AnotherTry Another

Doctors announce the benefits of Doctors announce the benefits of eating ice cream dailyeating ice cream daily

What is the What is the marketmarket you are graphing? you are graphing? Ice CreamIce Cream Which Which determinantdeterminant has changed? has changed? Taste and FadsTaste and Fads Does it affect Does it affect supply or demandsupply or demand?? DemandDemand Does supply Does supply increase or decreaseincrease or decrease?? Increase ↑Increase ↑ Does the supply Does the supply curve shiftcurve shift to the right or left? to the right or left? Right →Right →

DemandDemand for ice cream for ice cream increasesincreases for health reasons for health reasons

Q2

D2

P2E2

Car Manufacturer Car Manufacturer Announces Plans for Announces Plans for SUV Price Increase in SUV Price Increase in

Two MonthsTwo Months

Here’s a Tricky OneHere’s a Tricky One

Don’t forget to ask the Don’t forget to ask the questions . . . questions . . .

What is the What is the marketmarket you are graphing? you are graphing? Which Which determinantdeterminant has changed? has changed? Does it affect Does it affect supply or demandsupply or demand?? Does supply/demand Does supply/demand increase or increase or

decreasedecrease?? Does the Does the curve shiftcurve shift to the right or left? to the right or left?

Demand for SUVs NOW!Demand for SUVs NOW!

Q2

D2

P2E2

Always read the Always read the headline for what headline for what it is it is right nowright now!!

Try not to read into it too much! Try not to read into it too much! Keep it simple!Keep it simple!

More Supply/Demand More Supply/Demand Practice GraphingPractice Graphing

Closer - Wednesday, 4/9Closer - Wednesday, 4/9Please note the following on your closer worksheet:Please note the following on your closer worksheet:

Things you learned todayThings you learned today

Ways you can use this material in the futureWays you can use this material in the future

Nugget of advise to future studentsNugget of advise to future students

Toyota unveils new car that gets 97 mpg!

Don’t forget to ask the questions!

• What is the market you are graphing?

• Which determinant has changed?

• Does it affect supply or demand?

• Does supply/demand increase or decrease?

• Does the supply/demand curve shift to the right or left?

Demand increases for Toyotas with great gas mileage

P2

Q2

D2

Protected Owls Discovered in Lumber

Forest! Companies told to

discontinue logging.

Don’t forget to ask the questions!

• What is the market you are graphing?

• Does it deal with Supply or Demand?

• Does supply increase or decrease?

• Does the supply curve shift to the right or left?

Supply of lumber (logging) decreases due to protection of owls

S2

P2

Q2