Economics – Supply and Demand Supply _____
Demand _____
Quantity _____
Price _____
Supply _____
Demand _____
Quantity _____
Price _____
Demand
Supply
Definition:
Definition:
Non-Price Factors that Change Demand
Non-Price Factors that Change Supply
1. Substitutional Effect
1. Government Policies
2. Complimentary Good
2. Cost of Production
3. Income Effect
3. Change in Technology
4. Change in the Number of Consumers
4. Natural Disasters
5. Change in Consumer Expectations
5. Other (Strikes, Imports)
6. Change in Consumer Tastes
Law of Diminishing Returns -
Types of Demand 1. Example: 2. Example:
Law of Diminishing Marginal Utility -
Supply and Demand Practice 1. Create a demand curve based on the following schedule for 2 liter Pepsi-Cola: Price (P) $.90 $1.00 $1.10 $1.20 $1.30
Demand (D) 6 5 4 3 3
2. Demonstrate the effect on the demand curve if the price of Coca-Cola rises. 3. Demonstrate the effect on demand if the news report describes the negative health risks when too many soft drinks are consumed. 4. Identify the non-price factors that changed demand in #2 and #3. 5. Create a supply curve based on the following schedule for 2 liter Pepsi-Cola: Price (P) $.90 $1.00 $1.10 $1.20 $1.30
Supply (S) 2 3 4 5 6
6. Demonstrate the effect on the supply curve if Pepsi-Cola employees go on strike. 7. Demonstrate the effect on the supply curve if the price of sugar rises. 8. Identify the non-price factors that changed supply in #6 and #7. 9. Combine the original demand and supply curves onto one graph. 10. What is the market price? 11. Add the curves from #2 and #6 to the same graph use in #9. 12. What is the new market price? 13. What economic condition exists above the market price? 14. What economic condition exists below the market price? 15. How do businesses deal with each of those conditions?
Reasons For Changes in Demand A
B
C
D
E
Price (P)
Beef consumption in May
Read the following eight newspaper headlines. In each case decide if the event will cause a change in the demand for beef. If so, determine if it is an increase or a decrease, and write the correct answer. Begin at curve C. If you think headline 1 means there will be a decrease in demand, write “decrease” in the first blank and “B” in the second blank: move to curve B to do headline 2. If you think demand will increase, write “increase” and “D” in the blanks for headline 1; move to curve D to do headline 2. Move only one curve at a time. Do not skip from say A to C even if you think the headline means there will be a large change in demand. Do not go beyond the five curves. If you are at A and the next headline implies a decrease in demand, you goofed somewhere. There is one headline which implies that the demand for beef does not change.
1. PRICE OF BEEF TO RISE IN JUNE Demand _______________ Curve ________
5. MIGRATORY BIRDS HEAD NORTH, SUMMER AWAITS Demand _______________ Curve ________
6. REAL INCOME FOR AMERICANS DROPS 3RD MONTH IN ROW Demand _______________
Curve ________
7. CHARCOAL SHORTAGE THREATENS MEMORIAL DAY COOKOUTS Demand _______________ Curve ________ 8. NATIONWIDE FAD: THE DISCO-BURGER Demand _______________ Curve ________ Optional Bonus: Categorize each change in demand in the exercise above according to the reason that demand changed. Write the number of the headline(s) next to the reason for the change in demand. One category will have two headlines numbers. _____ A change in consumer expectations.
2. MILLIONS OF ALIENS SWELL U.S. POPULATION Demand _______________ Curve ________
_____ A change in consumer tastes. _____ A change in number of consumers in the market. _____ A change in income.
3. PORK PRICES DROP Demand _______________
Curve ________
_____ A change in price of a substitute good. _____ A change in the price of a complementary good.
4. SURGEON GENERAL WARNS THAT EATING BEEF CAN BE HAZARDOUS TO HEALTH Demand _______________ Curve ________
Reasons For Change in Supply A
B
C
D
E
Price (P)
Supply of foreign and domestically produced cars in the U. S. (Q) Read the following seven newspaper headlines. In each case, decide if the event will cause any change in the supply of cars. If so, determine if it is an increase or decrease, and write the correct answer. Begin at curve C. If you think headline 1 means there will be a decrease in supply, write “decrease” in the first blank and “B” in the second blank; move to curve B to do headline 2. If you think supply will increase, write “increase” and “D” in the blanks for headline 2; move to curve “D” to do headline 3. Move only one curve at a time. Do not skip from say A to C even if you think the headline means there will be a large change in supply. Do not go beyond the five curves. If you are at A and the next headline implies a decrease in supply, you goofed somewhere. There is one headline which implies that the supply of cars does not change.
1. AUTO WORKERS UNION AGREES TO WAGE AND FRINGE CUTS Supply _______________ Curve ________ 2. NEW ROBOT TECHNOLOGY INCREASES EFFIEIENCY Supply _______________ Curve ________ 3. NATIONWIDE AUTO STRIKE BEGAN AT MIDNIGHT Supply _______________ Curve ________
4. NEW AUTO IMPORT QUOTAS REDUCE FLOW OF FOREIGN CARS Supply _______________ Curve ________ 5. COST OF STEEL RISES Supply _______________
Curve ________
6. AUTO PRODUCER GOES BANKRUPT, CLOSES OPERATION Supply _______________ Curve ________ 7. BUYERS REJECT NEW MODELS Supply _______________ Curve ________
Optional Bonus: Categorize each change in supply according to the reason that affected supply. Write the number of the headline next to the reason for the change in supply. In some cases, more than one headline could be matched to a reason. _____ A change in the cost of production. _____ A change in technology. _____ Natural disaster/other event that causes decrease in production. _____ Government policies.