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    1. and Demand P Q S 1 D 1 D 2 D 3 S 3 S 2 “ OK, I was wrong. It is a matter of supply and demand, and now I think you da “man”.
    2. Consumers and Producers Feel Differently About High and Low prices Producers supply more at the higher price because the opportunity cost increases if they don’t. Consumers consume less at the higher price because they now have less money to spend. Producers supply less at lower prices. Consumers consume more at the lower price because they now have more money to spend.
    3. LAW OF SUPPLY <ul><li>As Price Rises… </li></ul><ul><li>… Quantity Supplied Rises </li></ul><ul><li>As Price Falls… </li></ul><ul><li>… Quantity Supplied Falls </li></ul>A direct relationship exists between price and quantity supplied
    4. SUPPLY DEFINED SUPPLY SCHEDULE $1 2 3 4 5 CORN Various Amounts 5 20 35 50 60 P Q S
    5. SUPPLY DEFINED SUPPLY SCHEDULE $1 2 3 4 5 CORN Various Amounts A Series of Possible Prices … a specified time period … other things being equal 5 20 35 50 60 P Q S
    6. GRAPHING SUPPLY 5 P Q o $5 4 3 2 1 10 20 30 40 50 60 70 80 $5 4 3 2 1 60 50 35 20 5 Price of Corn Quantity of Corn CORN Plot the Points P Q S
    7. GRAPHING SUPPLY P Q o $5 4 3 2 1 10 20 30 40 50 60 70 80 $5 4 3 2 1 60 50 35 20 5 Price of Corn Quantity of Corn CORN Plot the Points P Q S
    8. GRAPHING SUPPLY 35 P Q o $5 4 3 2 1 10 20 30 40 50 60 70 80 $5 4 3 2 1 60 50 35 20 5 Price of Corn Quantity of Corn CORN Plot the Points P Q S
    9. GRAPHING SUPPLY P Q o $5 4 3 2 1 10 20 30 40 50 60 70 80 $5 4 3 2 1 60 50 35 20 5 Price of Corn Quantity of Corn CORN Plot the Points P Q S
    10. GRAPHING SUPPLY P Q o $5 4 3 2 1 10 20 30 40 50 60 70 80 $5 4 3 2 1 60 50 35 20 5 Price of Corn Quantity of Corn CORN Plot the Points P Q S
    11. GRAPHING SUPPLY S P Q o $5 4 3 2 1 10 20 30 40 50 60 70 80 $5 4 3 2 1 60 50 35 20 5 Price of Corn Quantity of Corn CORN Plot the Points Connect the Points P Q S
    12. GRAPHING SUPPLY S P Q o $5 4 3 2 1 10 20 30 40 50 60 70 80 $5 4 3 2 1 60 50 35 20 5 Price of Corn Quantity of Corn CORN What if Supply Increases? P Q S
    13. GRAPHING SUPPLY S P Q o $5 4 3 2 1 10 20 30 40 50 60 70 80 Price of Corn Quantity of Corn $5 4 3 2 1 60 50 35 20 5 CORN 80 70 60 45 30 S’ Increase in Supply Increase in Quantity Supplied P Q S
    14. GRAPHING SUPPLY S P Q o $5 4 3 2 1 10 20 30 40 50 60 70 80 $5 4 3 2 1 60 50 35 20 5 Price of Corn Quantity of Corn CORN What if Supply Decreases? P Q S
    15. GRAPHING SUPPLY S P Q o $5 4 3 2 1 10 20 30 40 50 60 70 80 $5 4 3 2 1 60 50 35 20 5 Price of Corn Quantity of Corn CORN S’ 45 30 20 0 -- Decrease in Supply Decrease in Quantity Supplied P Q S
    16. GRAPHING SUPPLY WITH DEMAND S Q o $5 $4 $3 $2 $1 10 20 30 40 50 60 70 80 $5 4 3 2 1 60 50 35 20 5 Price of Corn Quantity of Corn CORN Combining with Demand P Q S
    17. MARKET DEMAND & SUPPLY 7 S Q o $5 4 $3 2 1 2 4 6 8 10 12 14 16 $5 $4 $3 $2 $1 2,000 4,000 7,000 11,000 16,000 $5 $4 $3 $2 $1 12,000 10,000 7,000 4,000 1,000 D Price of Corn Quantity of Corn CORN MARKET CORN MARKET Market Clearing Equilibrium P Q D P Q S
    18. Shortage of Face Masks for S ARS Young Hong Kong ballet dancers wear masks to protect themselves from SARS. 770 people died from this disease.
    19. So What to use if there is a shortage?
    20.  
    21. Market Supply Curve QS of Crude Oil QS 1 S “ Particular Price” $45 $11 $6 $20 $25 QS 2 QS 3 QS 4 QS 5 Price
    22. And why is talk so cheap? Supply is excessive. Cut Supply & you will increase demand.
    23. DETERMINANTS [Shifters] OF SUPPLY <ul><li>1. Cost of Inputs [ wages & raw materials ] </li></ul><ul><li>Increase in wages (increases/decreases) supply. </li></ul><ul><ul><ul><li>Ex: A decrease in the price of computer chips </li></ul></ul></ul><ul><li>(increases/decreases) the supply of computers. </li></ul>AS3 AS1 AS2 P Supply P S 1 S 2
    24. 2. Technological Improvement This lowers production costs & increases “S” . Ex: Suppose a new milking machine called “ The Invisible Hand” has a very soothing effect on cows; cows find the new machine so “udderly” delightful that they produce 30% more milk . This technological advance will cause a shift to the right . “ Can’t wait till milking time.”
    25. The cow floats on its own pocket of water, as the water bed fits each cow’s body . They are “cool in the summer and warm in the winter .” They last 15-20 years. Cost is $150.00. By conforming to the shape of the cows, the beds give the cows a more comfortable rest. They reduce wear and tear on the cows’ joints and prevent swelling and burning of hocks (ankles). The first ones who come back from the milking parlor fill those water bed stalls first . The other late-arriving cows say, Technological Breakthrough – Cow Waterbeds “ 500 gallons of blood have to circulate thru a cow’s udder to produce nutrients for one gallon of milk.” “ Mooooooovvvvvveeeeee over, give me that water bed.” Waterbedsforcows.com
    26. 3. Number of Sellers <ul><li>If more firms enter an industry, the supply curve will shift to the (left/right). </li></ul><ul><li>When the American Basketball League began play in 1968, there was a (bigger/smaller) supply of basketball games each week. </li></ul><ul><li>A new professional football league will (increase/decrease) the supply of football games. </li></ul>AS 3 AS 1 AS 2
    27. Bigger Supply of Basketball Games in 1968 with the A B A D a l l a s C h a p a r r a l s I’m going for “3”. “ Bigger supply of basketball games every week”
    28. 4. E xpectations about Future Price <ul><li>If oil p roducers expect future oil prices to decline, they will (increase/decrease) current production. </li></ul>AS 3 AS 1 AS 2 Supply Oil Prices Expected to decrease P
    29. 5. Subsidies – free money from “G” 6. Taxes – take away business profits and decrease supply. Businesses have their taxes increased which moves the supply curve to the (left/right). Free money from the government (subsidies) induces suppliers to supply more.
    30. DETERMINANTS OF SUPPLY <ul><li>Cost of Inputs </li></ul><ul><li>Productivity </li></ul><ul><li>Taxes & Subsidies </li></ul><ul><li>Technology </li></ul><ul><li>Price Expectations </li></ul><ul><li>Number of Sellers </li></ul>
    31. D 2 With Much Higher Gas Prices, What Happens In The SUV/RV Market S 1 P 1 P 2 Q 2 Q 1 D 1 8 MPG QS QD
    32. <ul><li>Decide if the price of oranges is going to rise , fall , or stay the same . </li></ul><ul><li>___1. All of the growers meet & agree to grow fewer oranges next year. </li></ul><ul><li>___2. Growers plant more acres of orange trees. </li></ul><ul><li>___3. Orange growers run an advertising campaign promoting </li></ul><ul><li>oranges as a symbol of good health. </li></ul><ul><li>___4. One grower [out of thousands] retires and stops growing oranges. </li></ul><ul><li>___5. Growers develop a bigger and better tasting orange. </li></ul><ul><li>___6. Orange growers are struck by the disease-causing Mediterranean </li></ul><ul><li>fruit fly. </li></ul>Quantity of Oranges R F R S R R Juicy “Orange” Prices
    33. “ Increase in D ” “ Decrease in D ” “ Increase in S ” “ Decrease in S ” ___1. Decrease in income on market for used cars . ___2. Decrease in income on market for new cars . ___3. Consumer expectations about a price decrease . ___4. Producer expectations about a price decrease . ___5. Increase in # of producers on the market for computers . ___6. Increase in # of consumers on the market for used cars . ___7. Increase in # of consumers on the market for new cars . ___8. Decrease in the price of movies upon the market for popcorn . ___9. Decrease in business taxes on the market for computers . ___10. Consumer expectations of a shortage of apples . ___11. Decrease in resource cost on market for computers . ___12. Increase in price of wheat upon market for corn . ___13. Consumer expectations of a shortage of cell phones. ___14. Producers expectations about a price increase. ___15. Increase in income on the market for iPods . B B C C A A C A D C A A A A D D 1 D 2 (A) (B) (C) (D) D 1 D 2 S S S 1 S 1 S 2 S 2 D D TIMER RATNEST P 2 P 1 P 1 P 2 P 1 P2 P 2 P 1 QD 1 QD 2 QD 2 QD1 QD 1 QD2 QD 2 QD1
    34. NS 41-53 41. Supply – quantities producers offer at each (technique/price). 42. The relationship between price and QS is (direct/inverse) and the relationship between price and QD is (direct/inverse) or opposite. 43. The “law of supply” indicates that producers will offer (less/more) at higher prices. 44. In moving along a stable supply/demand curve , (income/price) is not held constant. 45. (Inelasic/Elastic) supply-when QS is very responsive to price . 46. (Inelastic/Elastic) supply-when a change in price has little impact on QS . 47. The 3-item test for elastic supply is: the item can be made quickly, it tends to be cheap, & it can be produced by (skilled/unskilled) workers. 48. The 3-item test for inelastic supply is: the item cannot be made quickly, it tends to be expensive, & (skilled/unskilled) workers. 49. An example of inelastic supply is (posters/computers/T-shirts). 50. An example of elastic supply is (HDTV/computers/T-shirts). 51. The supply curve for elastic supply is more (flat/vertical). 52. The supply curve for inelastic supply is more (flat/vertical). 53. A decrease in the price of cattle feed will cause the (D/S) curve for beef to shift.
    35. Supply NS 61-64 Bushels Demanded Corn Price Bushels Supplied 26 $5 46 32 $4 41 37 $3 37 43 $2 32 48 $1 29 61. Equilibrium price will be ($1/$2/$3/$4/$5). 62. If the price in this market were $2 , farmers (would/would not) be able to sell all their corn. 63. If the price were initially $5 , we would expect the price of corn supplied to (increase/decrease) as a result of the price change.
    36. 74. A decrease in income , if “X” is an inferior good would (increase/decrease) (demand/supply), (increase/decrease) price, and (increase/decrease) quantity. 75. A decrease in the number of consumers for product “X” will (increase/decrease) (demand/supply), (increase/decrease) price, and (increase/decrease) quantity. 76. Producer expectations that the price of “X” will decrease sharply in the future will (incr/decr) (demand/supply), (incr/decr) price, & (incr/decr) quantity. 77. A decrease in the price of a product which is a substitute to “X” will (incr/decr) (supply/demand), (incr/decr) price, (incr/decr) quantity. 68. Increase in the price of irrigation equipment ( resource cost ) upon the market for wheat is illustrated by diagram (A/B/C/D). 69. Increase in incomes upon the market for spam is illustrated by diagram (A/B/C/D). 70. Subsidy for cancer research being taken away is illustrated by diagram (A/B/C/D). 71. D ecrease in the price of M & M s upon the market for S nickers is illustrated by (A/B/C/D). 72. Decrease in worker wages on the market for textiles is illustrated by (A/B/C/D). 73. I ncrease in the price of cameras upon the market for film is illustrated by (A/B/C/D). NS 68-77
    37. NS 78 - 81 S 2 P 2 E 2 D 2 S 2 D 2 E 2 S 2 Q 2 D 2 S 2 Q 2 78. If demand increases and supply decreases , equilibrium price will (incr/decr/stay the same) & equilibrium quantity will (incr/decr/stay the same). 79. If demand decreases and supply increases , equilibrium price will (incr/decr/stay the same) & equilibrium quantity will (incr/decr/stay the same). 80. If the supply and demand curves both increase , equilibrium price will (incr/decr/stay the same) & equilibrium quantity will (incr/decr/stay the same). 81. If demand and supply curves both decrease , equilibrium price will (incr/decr/stay the same) & equilibrium quantity will (incr/decr/stay the same). E 2 *Staying the same means indeterminate , that is, the quantity could increase , decrease , or stay the same , depending on the magnitude of the shifts .
    38. GRAPHING SUPPLY [Change in QS] 5 P Q o $5 $4 $3 $2 $1 10 20 30 40 50 60 70 80 $5 4 3 2 1 60 50 35 20 5 Price of Corn Quantity of Corn CORN Plot the Points P Q S
    39. GRAPHING SUPPLY [Change in QS] P Q o $5 $4 $3 $2 $1 10 20 30 40 50 60 70 80 $5 4 3 2 1 60 50 35 20 5 Price of Corn Quantity of Corn CORN Plot the Points P Q S
    40. GRAPHING SUPPLY [Change in price, so “Change in QS”] Q o $5 $4 $3 $2 $1 10 20 30 40 50 60 70 80 $5 4 3 2 1 60 50 35 20 5 Price of Corn Quantity of Corn CORN Plot the Points P Q S
    41. GRAPHING SUPPLY [Change in price, so “Change in QS”] S Q o $5 $4 $3 $2 $1 10 20 30 40 50 60 70 80 $5 4 3 2 1 60 50 35 20 5 Price of Corn Quantity of Corn CORN Plot the Points Connect the Points P Q S
    42. GRAPHING SUPPLY S Q o $5 $4 $3 $2 $1 10 20 30 40 50 60 70 80 $5 4 3 2 1 60 50 35 20 5 Price of Corn Quantity of Corn CORN What if Supply Increases? P Q S
    43. GRAPHING SUPPLY [Change in S] S 1 Q o $5 $4 $3 $2 $1 10 20 30 40 50 60 70 80 Price of Corn Quantity of Corn $5 4 3 2 1 62 52 40 25 10 CORN 82 72 60 45 30 S 2 Increase in Supply Increase in QS P Q S
    44. GRAPHING SUPPLY [Change in S] S Q o $5 4 3 2 1 10 20 30 40 50 60 70 80 $5 4 3 2 1 60 50 35 20 5 Price of Corn Quantity of Corn CORN What if Supply Decreases? P Q S
    45. GRAPHING SUPPLY [Change in S] S 1 Q o $5 $4 $3 $2 $1 10 20 30 40 50 60 70 80 $5 4 3 2 1 63 54 40 25 9 Price of Corn Quantity of Corn CORN S 2 46 35 20 3 -- Decrease in Supply Decrease in QS P Q S
    46. Price Floor – minimum price [creates surpluses ] . $2.50 S P Q 0 14 19 24 D Surplus Such as: Minimum Wage Agricultural Price Supports The price has to be IN the house . It can’t be below the floor. Some call agricultural price supports “ udder insanity.” Price Floor-minimum price QS exceeds QD Millions of gallons per month 1.90 Price per gallon Equilibrium price for milk
    47. Price Ceiling - maximum price [creates shortages ] 7 S P o D Shortage Such as: Rent controls in NYC Wartime price controls Rock concert prices Super Bowl tickets The price has to be in the house. It can’t be above the ceiling. Super Bowl T icket P rices E-Bay 1967 - $12.00 2004 - $500 $2-6,000 Reliant Stadium NFL could raise the price & make another $150 M but the average man couldn’t attend. 2.5 3 Price Ceiling-maximum price QD exceeds QS Millions of Dwellings Rented $2,000 1,200 3.5 NYC Rent Controls
    48. Broccoli “ Suppliers produce smaller/ larger quantities at each price.” “ Substitutes in production” I only have 200 acres S 3 S 1 S2 Change in “Supply” [Curve] 1. “Non-price change” [ RATNES T ] 2. Whole supply curve “shifts” [There was a QS change but it was not caused by a change in price] S Corn S 1 P S 2 QS1 QS2 Alternative Output Price Change [ I N V E R S E ] QS3 QS1 QS2 P 2 P 1 P S 1 S 2 [new football league- bigger “S ” of games ] Don’t confuse these two with Chg in QS. “ Supply Shifters” [RATNEST] 1. R esource Cost [wages /raw materials ] [ I N V E R S E ] 2. A lternative Output Prices [ I N V E R S E ] 3. T echnology [ DIRECT ] 4. N umber of Suppliers [ DIRECT ] 5. E xpectations [about future price] [ I N V E R S E ] 6. S ubsidies [ DIRECT ] 7. T axes [ I N V E R S E ]
    49. Four Possibilities D 1 D 1 S A B C D Increase in supply of gas Slide Rule After introduction of calculator S D 1 D 2 [TIMER] [RATNEST] “ D” for flag after 9/11 “ Increase in Demand” “ Decrease in Demand” “ Increase in Supply” “ Decrease in Suply” Decr in “ S” of gas D P Q D P Q S Q P P S Q D S 1 D S 1 S 2 $1.85 $1.00 Q 1 Q 2 Q 2 Q 1 $1.85 S 1 $1.00 P 2 P 1 P 1 P 2 Q 1 Q 2 Q 2 Q 1 After “Looking For Nemo”
    50. Banana Supply & Demand Q o D 1 Quantity Price (per pound) S 1 S 2 P Q 1 Q 2 P 1 P 2 Crop Freezing Damage…
    51. American Flags Q o D 1 Price (per flag) S 1 P Q 1 Q 2 P 1 P 2 D 2 Patriotism Surge after 9/11…
    52. “ TIMER”[D] or “RATNEST”[S] ___7. Increase in the price of Apple’s iPod on the market for Dell’s Digital Jukebox . ___8. Increase in the price of tea on the market for lemon . ___9. Increase in business taxes on the market for SUVs . ___10. Consumers expect a shortage of cell phones . ___1. Increase in income on the market for camcorders . ___2. Increase in # of consumers on market for computers. ___3. Producer expectations about a price increase. ___4. Consumer expectations about a price increase. ___5. Increase in # of producers on market for digital cameras. ___6. Increase in resource cost on the market for bagels. A A D A C D A B D A
    53. <ul><li>An increase in income if steak is a normal good would: </li></ul><ul><li>a. increase D, increase P, & increase Q. b. increase D, increase P, & decrease Q. </li></ul><ul><li>c. increase S, increase P, & increase Q. d. decrease D, increase P, & increase Q. </li></ul><ul><li>2. A decrease in the price of resources used to produce iPods will: </li></ul><ul><li>a. increase S, increase P, & increase Q. b. increase D, increase P, & increase Q. </li></ul><ul><li>c. decrease S, decrease P, & decrease Q. d. do none of the above </li></ul><ul><li>3. Decrease in price of butter on the market for the substitute margarine : </li></ul><ul><li>a. increase D, increase P, & decrease Q. b. decrease D, decrease P, & increase Q. </li></ul><ul><li>c. decrease D, increase P, & decrease Q. d. do none of the above </li></ul><ul><li>4. An improvement in technology used to produce DVDs will: </li></ul><ul><li>a. decrease S, increase P, & decrease Q. b. decrease S, increase P, & increase Q. </li></ul><ul><li>c. increase S, decrease P, & increase Q. d. decrease D, decrease P, & decrease Q. </li></ul><ul><li>5. A decrease in the number of consumers for Fuzzy Wuzzies : </li></ul><ul><li>a. decrease S, decrease P, & decrease Q. b. increase D, increase P, & increase Q. </li></ul><ul><li>c. decrease D, decrease P, & decrease Q. d. decrease D, decrease P, & increase Q. </li></ul>Effect of Changes in “D” or “S” on Price and Quantity E 1 E 2 E 1 E 2 E 1 E 2 E 2 E 1
    54. 6. A decrease in taste for Fuzzy Wuzzies would: a. increase D, increase P, & increase Q. b. decrease D, increase P, & decrease Q. c. increase S, increase P, & increase Q. d. decrease D, decrease P, & decrease Q. 7. A reduction in the number of firms producing computers: a. increase S, increase P, & increase Q. b. increase D, increase P, & increase Q. c. decrease S, increase P, & decrease Q. d. decrease S, decrease P, decrease Q. 8. An increase in the price of pancakes, a complement for syrup would: a. increase D, increase P, & decrease Q. b. decrease D, decrease P, & increase Q. c. decrease D, decrease P, & decrease Q. d. do none of the above 9. A decrease in income upon the market for spam would: a. decrease S, increase P, & decrease Q. b. decrease S, increase P, & increase Q. c. increase D, decrease P, & increase Q. d. increase D, increase P, & increase Q. 10. Consumer expectations that the price of PSP will increase by 50% in the future will: a. decrease S, decrease P, & decrease Q. b. increase D, increase P, & increase Q. c. decrease D, decrease P, & decrease Q. d. decrease D, decrease P, & increase Q. Effect of Changes in “D” or “S” on Price and Quantity
    55. C A C A C B D B d. increase in price of computers c. decrease in # of consumers [D – “ TIMER”; QD – price change of product (inverse)] ___1. Which of the following will cause an &quot;Increase in Demand&quot; for computers? a. decrease in price of computers b. decrease in income c. increase in income d. increase in the price of compu ters ___2. Which of the following will cause an &quot;Increase in QD&quot; for computers? a. decrease in price of computers b. decrease in income c. increase in income d. increase in price of computers ___3. Which of the following will cause a &quot;Decrease in Demand&quot; for Lincoln logs? a. increase in price of Lincoln logs b. decrease in price of Lincoln logs c. decrease in # of consum ers(marketsize) ___4. Which of the following will cause a &quot;Decrease in QD&quot; for Lincoln logs? a. increase in price of Lincoln logs b. decrease in price of Lincoln logs c. decrease in # of consumers ( market size ) [S – “ RATNEST”; QS – price change of product (direct)] ___5. Which of the following will cause an &quot;Increase in Supply&quot; for DVDs? a. decrease in price of DVDs c. decrease in resource cost b. increase in price of DVDs d. expectations of price increase ___6. Which of the following will cause an &quot;Increase in QS&quot; for DVDs? a. decrease in price of DVDs c. decrease in resource price b. increase in pric e of DVDs d. expectations of price increase ___7. Which of the following will cause a &quot;Decrease in Supply&quot; for DVDs? a. increase in price of DVDs c. subsidies to suppliers of DVDs b. decrease in price of DVDs d. expectations of price increase ___8. Which of the following will cause a &quot;Decrease in QS&quot; for digital cameras? a. increase in price of cameras c. subsidies to suppliers of cameras b. decrease in price of cameras d. expectations of digital camera price increase
    56. “ Increase in D ” “ Decrease in D ” “ Increase in S ” “ Decrease in S ” ___1. Increase in the price of computers on the market for software. ___2. Decrease in auto worker wages on the market for autos . ___3. Decrease in the price Pepsi on the market for Coke . ___4. D ecrease in the price of computer chips on the computer market . ___5. Increase in price of fertilizer on the market for wheat . ___6. D ecrease in government subsidies on the market for AIDS research . ___7. Increase in incomes on the market for used clothing . ___8. A new professional soccer league is formed upon the market for soccer games . ___9. Producer expectations that the price of orange juice will increase 30% in 3 weeks? ___10. Consumer expectations that the price of orange juice will increase 30% in 3 weeks? ___11. Decrease in price of computers upon market for monitors ? B C C D D C D A B B D 1 D 2 (A) (B) (C) (D) D 1 D 2 S S S 1 S 1 S 2 S 2 D D TIMER RATNEST P P P P A
    57. S & D Quiz 1 for “Milk” <ul><li>1. M ilk workers become unionized and win an increase in wages . </li></ul><ul><li>2. A decrease in price of the alternative output cheese affect milk supply. </li></ul><ul><li>3. A negative report on the dangers of cholesterol affect the taste for milk. </li></ul><ul><li>4. Milk demand is affected by an increase of 10 million consumers . </li></ul><ul><li>5. Cookies , a complement of milk , increase in </li></ul><ul><li>price and therefore affect the demand for milk . </li></ul><ul><li>6. A technological breakthrough is discovered by a BL student who </li></ul><ul><li>discovers that cows supply more milk if Ave Maria is playing during milking. </li></ul><ul><li>7. Milk producers expect milk prices to decrease 25% in one week. </li></ul><ul><li>8. Due to a deadly cow plague (caused by too much cow belly dancing ), milk </li></ul><ul><li>availability is expected to shrink by 50% & impact the current demand for milk. </li></ul><ul><li>9. Subsidies for milk production are increased by 20 cents per gallon. </li></ul><ul><li>10. The price of orange juice , a substitute for milk, increased by 20% . </li></ul>[ “ + or – ” ; “ D ” or “ S ” ] 5 Demand Shifters 7 Supply Shifters 1. T aste [ direct ] 1. R esource cost [wages/raw materials – I N V E R S E ] 2. I ncome[ normal - direct ; inferior - I N V E R S E ] 2. A lternative output price changes [ I N V E R S E ] 3. M arket size (# of consumers– direct ] 3. T echnology [ direct ] 4. E xpectations (Consumer) availability- I N V E R S E] 4. N umber of suppliers [ direct ] future income- direct ; future price- direct ; 5. E xpectations [producer] about future price[ I N V E R S E ] 5. R elated good price changes 6. S ubsidies [ direct ] [ substitutes - direct ; complements - I N V E R S E ] 7. T axes [ I N V E R S E ] 1. –S 2. +S 3. –D 4. +D 5. –D 6. +S 7. +S 8. +D 9. +S 10. +D [How does each situation shift the “D” or “S” curve for milk?] I love to listen to Ave Maria.
    58. S & D Quiz 2 for “Milk” <ul><li>1. Milk producers hire fewer union workers , decreasing resource cost . </li></ul><ul><li>2. An in crease in price of the alternative output cheese affect milk supply. </li></ul><ul><li>3. A positive report on the benefits of milk affect the taste for milk. </li></ul><ul><li>4. Milk demand is affected by a de crease of 20 million consumers . </li></ul><ul><li>5. Cookies , a complement of milk , decrease </li></ul><ul><li>in price & therefore affect the demand for milk . </li></ul><ul><li>6. A technological breakthrough is discovered by a BL student who </li></ul><ul><li>discovers that cows supply more milk if Enya is singing during milking. </li></ul><ul><li>7. Milk producers expect milk prices to increase 25% in two weeks. </li></ul><ul><li>8. Due to a deadly cow plague (caused by too much cow belly dancing ), milk </li></ul><ul><li>availability is expected to shrink by 60% & impact the current demand for milk. </li></ul><ul><li>9. Subsidies for milk production are decreased by 20 cents per gallon. </li></ul><ul><li>10. The price of orange juice , a substitute for milk, decreased by 20% . </li></ul>[“ + or – ”; “D” or “S”] 5 Demand Shifters 7 Supply Shifters 1. Taste [ direct ] 1. Resource cost [wages/raw materials – I N V E R S E ] 2. Income[ normal - direct ; inferior - I N V E R S E ] 2. Alternative output price changes [ I N V E R S E ] 3. Market size (# of consumers– direct ] 3. Technology [ direct ] 4. E xpectations (Consumer) availability- I N V E R S E] 4. Number of suppliers [ direct ] future income- direct ; future price- direct ; 5. E xpectations [producer] about future price[ I N V E R S E ] 5. Related good price changes 6. Subsidies [ direct ] [ substitutes - direct ; complements - I N V E R S E ] 7. Taxes [ I N V E R S E ] 1. +S 2. -S 3. +D 4. -D 5. +D 6. +S 7. -S 8. +D 9. -S 10. -D [How does each situation shift the “D” or “S” curve for milk?] I love Enya.
    59. Review for Demand and Supply “ You da man”
    60. The Harley Hog Circular Flow Product Market Resource Market Businesses Consumer Expenditures Land, Labor, Capital, & Entrepreneur Rent, Wages, Interest, & Profits Households
    61. The “Gangsta Car ” Businesses Product Market Resource Market Which flow represents? A. Consumer expenditures? B. Goods and services? C. Land, labor, capital, and entrepreneurial ability? D. Rent, wages, interest, and profits? Households 3 4 2 1 4 3 “ Gangsta” cars Labor for “ Gangsta Cars” Chrysler 300 2 Chrysler Plant 1 Circular Flow
    62. The Circular-Flow Diagram Households Product Market Resource Market 1 2 3 4 Which Flow Represents ? A. Goods/services? B. Consumer expenditures? C. Land, labor, capital and entrepreneurial ability? D. Rent, wages, interest, and profits? B usinesses $ $ $ $ Labor Fuzzy Wuzzy 4 3 1 2
    63. 40. At what letter is there unemployment [ recession ]? 41. What letters represent resources being used in their most productive manner ? [full employment, full production, and best available technology] 42. What letter represents an improvement in technology , therefore a new PPC frontier line? 43. The (straight line/curve) illustrates the “line of increasing cost” ? 44. The (straight line/curve) illustrates the “law of constant cost.” 45. At what letter would there be the most economic growth in the future if a country were producing there now? 46. What is the opportunity cost when moving from “C” to “D” ; E to B ; & do we have to give anything up when moving from F to D ? F A,B,C,D,E G A Capital Consumer no A B C G D E C A P I T A L G O O D S Consumer Goods F More or better resources or better technology
    64. Law of Demand [Change in QD ] QD 2 QD 1 Price QD I n v e r s e relationshi p $250.00 D Reasons For Downsloping “D” Curve 1. Income Effect –current buyers buy more. 2. Substitution Effect – new buyers now purchase. 3. Diminishing Marginal Utility - because buyers of successive units receive less marginal utility, they will buy more only when the price is lowered. Change in QD 1. Price change 2. Movement [up/down the demand curve] 3. Point to point [along the curve] “ D” refers to the “whole curve”. [“ all prices ”] “ QD” refers to a “point on the curve” based on a “particular price.” PSP
    65. LAW OF SUPPLY <ul><li>- As Price increases </li></ul><ul><li>… Q S also increases </li></ul><ul><li>- As Price decreases </li></ul><ul><li>… QS also decreases </li></ul>D irect relationship between price & QS P2 P1 QS1 QS2 S P1 P2 QS2 QS1 S
    66. <ul><li>T astes [ direct ] </li></ul><ul><li>I ncomes </li></ul><ul><li>-Normal [ direct ] & Inferior[ i n v e r s e ] </li></ul><ul><li>M arket Size(# of consumers) [ direct ] </li></ul><ul><li>E xpectations of consumers about </li></ul><ul><li>[future price- direct ; future </li></ul><ul><li>income [ direct ]; and availability [ i n v e r s e ] </li></ul><ul><li>R elated Good Price Changes </li></ul><ul><li>[substitutes- direct ; complements- i n v e r s e ] </li></ul>Helmets P “ TIMER”
    67. “ Demand Shifters” [TIMER] 1. T aste [ direct ] 2. I ncome [normal- direct ] [inferior- i n v e r s e ] 3. M arket Size [number of consumers- direct ] 4. E xpectations [of consumers about future price- direct , about future availability- i n v e r s e , or about future income– direct . 5. R elated Good Prices [substitutes- direct ] [complements- i n v e r s e ] Changes in “D” [curve] 1. Non price change [ “TIMER” ] 2. Whole “D” curve shifts [There is a change in “QD” but it is not caused by a change in “price.” [ QD-”singe price” ; D-”all prices” ] Complement [ i n v e r s e ] Substitute [ Direct ] Butter Bread Bagels P D 3 D 1 D 3 QD 3 QD 1 QD 2 D 1 D 2 P P 1 QD 1 QD 2 P 2 D 1 D 2 D P
    68. GRAPHING DEMAND [“Change in QD”] Q o $5 4 3 2 1 $5 4 3 2 1 10 20 35 55 80 Price Quantity of Corn CORN Plot the Points 10 20 30 40 50 60 70 80 P Q D
    69. $100 $90 $80 $70 $60 $50 $40 $30 $20 $10 0 20 40 60 75 100 120 140 160 180 200 220 Quantity (units of any good or service) 70 175 120 =120 QD=QS E QD QS QD QS QS QD QS QD D S Price Floor Surplus Price Ceiling Shortage Dollar Price If QS>QD; Price Decreases If QS<QD; Price Increases If QD=QS; Price Stays Same Law of Supply and Demand
    70. . Broccoli “ Suppliers produce smaller/ larger quantities at each price.” “ Substitutes in production” I only have 200 acres S 3 S 1 S2 Change in “Supply” [Curve] 1. “Non-price change” [ RATNES T ] 2. Whole supply curve “shifts” [There was a QS change but it was not caused by a change in price] S Corn S 1 P S 2 QS1 QS2 Alternative Output Price Change [ I N V E R S E ] QS 1 P 2 P 1 P S 1 S 2 [new football league- bigger “S ” of games ] Don’t confuse these two with Chg in QS. “ Supply Shifters” [RATNEST] 1. R esource Cost [wages /raw materials ] [ I N V E R S E ] 2. A lternative Output Prices [ I N V E R S E ] 3. T echnology [ DIRECT ] 4. N umber of Suppliers [ DIRECT ] 5. E xpectations [about future price] [ I N V E R S E ] 6. S ubsidies [ DIRECT ] 7. T axes [ I N V E R S E ] QS 2 QS 3
    71. Four Possibilities D 1 D 1 S A B C D Increase in supply of gas Slide Rule After introduction of calculator S D 1 D 2 [TIMER] [RATNEST] “ D” for flag after 9/11 “ Increase in Demand” “ Decrease in Demand” “ Increase in Supply” “ Decrease in Suply” Decr in “ S” of gas D P Q D P Q S Q P P S Q D S 1 D S 1 S 2 $1.85 $1.00 Q 1 Q 2 Q 2 Q 1 $1.85 S 1 $1.00 P 2 P 1 P 1 P 2 Q 1 Q 2 Q 2 Q 1 After “Looking For Nemo”
    72. “ Change in ” “ Change in ” “ Change in Demand” “ Chg in Supply” Non-Price Change Whole Curve Shifts [What is not held constant in these 4?] Price Change Point to Point Movement [ I N V E R S E ] [ DIRECT ] P 1 P 2 P 2 P 1 QD 1 QD 2 D S QD 2 QD 1 QS 1 QS 2 QS 2 QS 1 P 1 P 2 P 2 P1 S D 1 D 2 D 1 D 2 S 1 S 2 S 2 S 1 Q 1 Q 2 Q 2 Q 1 Q 1 Q 2 Q 2 Q 1
    73. Price Changes for Substitutes & C o m p l e m e n t s Subs - Direct Dr Pepper Complements - I n v e r s e Coke P 1 P 2 P 1 P 2 QD 1 QD 2 D D D 1 D2 D 1 D 2 Alternative Outputs - I n v e r s e S S 1 S 2 P 1 P 2 P QS 2 QS 1 Broccoli Corn Helmets Motorcycles
    74. “ Increase in D ” “ Decrease in D ” “ Increase in S ” “ Decrease in S ” ___1. Decrease in the price of N intendo DS on the market for DS games . ___2. Increase in iPod worker wages on the market for iPods . ___3. Increase in the price Dr. Pepper on the market for Coke . ___4. In crease in the price of computer chips on the computer market . ___5. Decrease in price of fertilizer on the market for wheat . ___6. In crease in government subsidies on the market for AIDS research . ___7. Decrease in incomes on the market for used clothing . ___8. N ew professional hockey league is formed upon the market for hockey games . ___9. Producer expectations that the price of orange juice will decrease 30% in 3 weeks? ___10. Consumer expectations that the price of orange juice will decrease 30% in 3 weeks? ___11. Decrease in price of computers upon market for monitors ? A D D C C C C B A A D 1 D 2 (A) (B) (C) (D) D 1 D 2 S S S 1 S 1 S 2 S 2 D D TIMER RATNEST P P P P A
    75. <ul><li>A decrease in income if spam is an inferior good whould: </li></ul><ul><li>a. increase D, increase P, & increase Q. b. increase D, increase P, & decrease Q. </li></ul><ul><li>c. increase S, increase P, & increase Q. d. decrease D, increase P, & increase Q. </li></ul><ul><li>2. An increase in the price of resources used to produce DVD </li></ul><ul><li>Players will: </li></ul><ul><li>a. increase S, increase P, & increase Q. b. increase D, increase P, & increase Q. </li></ul><ul><li>c. decrease S, decrease P, & decrease Q. d. decrease S, increase P, & decrease Q. </li></ul><ul><li>3. Decrease in price of butter on the market for the substitute margarine : </li></ul><ul><li>a. increase D, increase P, & decrease Q. b. decrease D, decrease P, & increase Q. </li></ul><ul><li>c. decrease D, increase P, & decrease Q. d. do none of the above </li></ul><ul><li>4. An improvement in technology used to produce DVDs will: </li></ul><ul><li>a. decrease S, increase P, & decrease Q. b. decrease S, increase P, & increase Q. </li></ul><ul><li>c. increase S, decrease P, & increase Q. d. decrease D, decrease P, & decrease Q. </li></ul><ul><li>5. An increase in the number of consumers for Fuzzy Wuzzies : </li></ul><ul><li>a. decrease S, decrease P, & decrease Q. b. increase D, increase P, & increase Q. </li></ul><ul><li>c. decrease D, decrease P, & decrease Q. d. decrease D, decrease P, & increase Q. </li></ul>Effect of Changes in “D” or “S” on Price and Quantity
    76. 6. An increase in taste for Fuzzy Wuzzies would: a. increase D, increase P, & increase Q. b. decrease D, increase P, & decrease Q. c. increase S, increase P, & increase Q. d. decrease D, decrease P, & decrease Q. 7. A reduction in the number of firms producing computers: a. increase S, increase P, & increase Q. b. increase D, increase P, & increase Q. c. decrease S, increase P, & decrease Q. d. decrease S, decrease P, decrease Q. 8. A decrease in the price of pancakes , a complement for syrup would: a. increase D, increase P, & decrease Q. b. decrease D, decrease P, & increase Q. c. Increase D, increase P, & increase Q. d. do none of the above 9. An increase in income upon the market for used cars would: a. decrease S, increase P, & decrease Q. b. decrease S, increase P, & increase Q. c. increase D, decrease P, & increase Q. d. decrease D, d ecrease P, & decrease Q. 10. Consumer expectations that the price of Nintendo DS will increase by 50% in the future will: a. decrease S, decrease P, & decrease Q. b. increase D, increase P, & increase Q. c. decrease D, decrease P, & decrease Q. d. decrease D, decrease P, & increase Q. Effect of Changes in “D” or “S” on Price and Quantity
    77. B D C B D A C A d. increase in price of Sevens c. increase in # of consumers 7 Revised of PSPs for PSPs for PSPs for PSPs [D – “ TIMER”; QD – price change of product(inverse)] ___1. Which of the following will cause a “ Decrease in Demand&quot; for Seven jeans? a. decrease in price of Seven jeans b. decrease in income c. increase in income d. increase in the price of compu ters ___2. Which of the following will cause a “ Decrease in QD&quot; for Seven jeans? a. decrease in price of Seven jeans b. decrease in income c. increase in income d. increase in price of Sevens ___3. Which of the following will cause an “ Increase in Demand&quot; for Seven jeans? a. increase in price of Seven jeans b. decrease in price of Seven jeans c. decrease in # of consum ers(marketsize) ___4. Which of the following will cause a n “ Increase in QD“ for Seven jeans? a. increase in price of Seven jeans b. decrease in price of Seven jeans c. decrease in # of consumers( marketsize ) [S – “ RATNEST”; QS – price change of product (direct)] ___5. Which of the following will cause an “ Decrease in Supply&quot; for PSPs? a. decrease in price of PSPs c. decrease in resource cost b. increase in price of PSPs d. expectations of price increase ___6. Which of the following will cause an “ Decrease in QS&quot; for PSPs? a. decrease in price of PSPs c. decrease in resource price b. increase in pric e of PSPs d. expectations of price increase ___7. Which of the following will cause a “ Increase in Supply&quot; for PSPs? a. increase in price of PSPs c. subsidies to suppliers of PSPs b. decrease in price of PSPs d. expectations of price increase ___8. Which of the following will cause a “ Increase in QS&quot; for PSPs? a. increase in price of PSPs c. subsidies to suppliers of PSPs b. decrease in price of PSPs d. expectations of a PSP price increase
    78. Practice “Supply Quiz” 1. Which would cause a “decrease in supply” for MP3 Players? a. decrease in the price of MP3s b. increase in the price of MP3s c. decrease in MP3 resource cost d. producer expectations of a price increase 2. Which would cause a “decrease in QS” for MP3s? a. decrease in the price of MP3s b. increase in the price of MP3s c. decrease in MP3 resource cost d. producer expectations of a price increase 3. Which would cause an “increase in supply” for MP3 Players? a. decrease in the price of MP3 Players b. increase in the price of MP3s c. decrease in MP3 resource cost d. producer expectations of a price increase 4. Which would cause an “increase in QS” for MP3s? a. decrease in price of MP3s b. increase in price of MP3s c. decrease in MP3 resource cost d. producer expectations of a price increase 5. An increase in the price of asparagus will (increase/decrease) the supply of the alternative output peas. 6. A 50% decrease in the price of “computer chips” will (increase/decrease) the (supply/QS) for “computers”. 7. Which would cause an “increase in supply” for MP3 Players? a. increase in wages for MP3 Player workers. b. subsidies($100 per computer) are given to MP3 Player companies. c. subsidies for MP3 Player makers being taken away.
    79.  

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