ECON101 Lecture Notes - Lecture 2: Ceteris Paribus, Demand Curve, Relative Price

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violetbear197

11 Sep 2016

School

University of Waterloo

Department

Economics

Course

ECON101

Professor

Zara Liquat

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ECON101 Full Course Notes

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De ne markets and prices, with a focus on competitive markets, money price, and relative price. Explain demand in the supply and demand market model. De ne the law of demand, along with how and why changes occur in quantity demand and demand. Explain supply in the supply and demand market model. De ne the law of supply, along with how and why changes occur in quantity supplied and supply. Apply the supply and demand model to illustrate how price and quantity change in the market. Use expected standards when drawing the supply and demand market model. Markets can vary in their level of complexity, approach, and competitiveness. Competitive market = a market which has many buyers and sellers and no single buyer or seller can in uence the price. Money price of a good or service = a number of dollars that must be given up for the good or service.

Related Questions

Question 2. In the late 1990s the prices of company shares on stock markets rose to levels which, for many firms, were much higher than warranted by the values of their assets and their profits. How can demand and supply analysis explain why this "bubble" in stock market prices was caused by expectations that share prices would continue to rise? Use a graph to illustrate the outcome. (3 points) Price (dollars per bar) 5 If both buyers and sellers expect share prices would continue to rise, the demand of stocks would go up and the supply of stocks would go down. Both resulting in a higher stock prices. Supply 3.00 (new) Supply (original) Demand (new) 1.50 1.00 0.50 Demand (original) 0 5 10 15 20 Quantity (millions of bars) (h) Increase in demand and decrease in supply

The following table shows the market demand schedule and supply schedule for notebooks.

Price ($/unit)	Quantity Demanded (units)	Quantity Supplied (units)
1	20	4
2	16	6
3	14	10
4	12	12
5	10	14
6	7	17
7	4	20
8	2	22
9	1	25

Refer to the table above. Assume that the market for notebooks is in equilibrium.

1. Which of the following is likely to happen if there is an increase in the school enrollment rate, everything else remaining unchanged?

A. Both the equilibrium price and quantity of notebooks decrease.

B. The equilibrium price and quantity remain unchanged.

C. Both the equilibrium price and quantity of notebooks increase.

D. The equilibrium price increases, but the equilibrium quantity of notebooks decreases.

2. A shortage occurs in a market when:

A.price is lower than the equilibrium price.

B. price is higher than the equilibrium price.

C. supply exceeds demand.

D. the marginal utility of consumption is negligible.

3. A change in the quantity demanded of a good is:

A. the outcome of a change in income.

B. the outcome of a change in tastes and preferences.

C. represented by a shift to a new demand curve.

D. represented by a movement along the demand curve.

4. The following table shows the demand schedules of three consumers of wine. Assume that these three buyers constitute the entire market.

PRICE ($/Bottle)	Sandra's Demand (Bottles)	David's Demand (Bottles)	Mary's Demand (Bottles)
â$8	2		10
â$6	14	15	18
â$4		23	24
â$2	24	27	28

Refer to the table above. If the market price of wine is $8/bottle, and the market demand for wine is 19 bottles, David's consumption of wine is:

A. 12 bottles.

B. 9 bottles.

C. 4 bottles.

D. 7 bottles.

5. Which of the following factors will NOT cause a shift in the demand for a good?

A. A change in the number of consumers

B. A change in the market price of the good

C. A change in tastes and preferences

D. A change in consumer incomes

6. Are all markets perfectly competitive?

A. No, there are other market types where firms have considerable power to control the price.

B. Yes, any economic system with a market structure is by definition perfectly competitive.

C. No, there are also command and control markets that are run by a central government.

D. No, in other types of markets, sellers offer identical goods and simply accept the market price.

7. Assume that a seller in a perfectly competitive market charges more than the equilibrium price. It is likely that this seller will:

A. increase his profit.

B. lose only a few buyers.

C. increase his sales.

D. lose almost all of his buyers.

8. The willingness to pay for a commodity:

A. increases as the consumption of the commodity increases.

B. is always less than the market price of the commodity.

C. decreases as the consumption of the commodity increases.

D. is always greater than the market price of the commodity.

9. Which of the following is likely to lead to a right shift in the supply curve of cotton?

A. An increase in labor productivity due to training programs

B. A rise in labor costs due to wage demands by labor unions

C. An increase in the price of cotton

D. A decrease in the price of cotton

10. The buyers of a good will want to purchase it as long as their willingness to pay for the good is:

A. equal to zero.

B. greater than or equal to the price.

C. greater than zero.

D. less than the price.

redmammoth450

Q 1: Below is a production possibilities table for consumer goods and capital goods : Production Alternatives Capital Goods Consumer Goods A 0 70 B 3 65 C 6 55 D 9 40 E 12 20 F 15 0 a. Show these data graphically. Upon what speciﬁc assumptions is this production possibilities curve based? b. If the economy is at point C, what is the cost of one more unit of capital good? Of one more unit of consumer good? Explain how the production possibilities curve reﬂects the law of increasing opportunity costs. c. If the economy characterized by this production possibilities table and curve were producing 7 units of capital goods and 45 units of consumer goods, what could you conclude about its use of its available resources? d. What would production at a point outside the production possibilities curve indicate? What must occur before the economy can attain such a level of production? e. Assume consumer good are bread and cookies here. What happens to this frontier if disease kills half of the economy’s hens and cows? Q 2(a): How does self-interest help achieve society’s economic goals? Why is there such a wide variety of desired goods and services in a market system? In what way are entrepreneurs and businesses at the helm of the economy but commanded by consumers? b. Why is private property, and the protection of property rights, so critical to the success of the market system? c. How the market system decides what to produce, how to produce it, and who obtains it. Q 3: How will each of the following changes in demand and/or supply affect equilibrium price and equilibrium quantity in a competitive market; that is, do price and quantity rise, fall, or remain unchanged, or are the answers indeterminate because they depend on the magnitudes of the shifts? Use supply and demand diagrams to verify your answers. i. Supply decreases and demand is constant. ii. Demand increases and supply increases. iii. Supply increases and demand decreases. b. Explain why the price in competitive markets settles down at the equilibrium intersection of supply and demand. Explain what happens if the market price starts out too high or too low. c. Consider the following events: Scientists reveal that consumption of oranges decreases the risk of Corona Virus and, at the same time, farmers use a new fertilizer that makes orange trees more productive. Illustrate and explain what effect these changes have on the equilibrium price and quantity of oranges.

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ECON101 Lecture Notes - Lecture 2: Ceteris Paribus, Demand Curve, Relative Price

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