ECON 105 Lecture Notes - Lecture 4: European Cooperation In Science And Technology, Marginal Cost, Opportunity Cost

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beigesnake255

16 Jan 2018

School

Simon Fraser University

Department

Economics

Course

ECON 105

Professor

Brian Krauth

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ECON 105 Full Course Notes

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Demand: demand curve: relationship between price and quantity demanded (purchased, downward sloping, we want to model the response to changes in factors other than prices. Income: preferences, prices of goods, beliefs about future prices/income/preferences. We will model these as: change s in qd at a given p, demand curve shifts in from d0, example to d1. I get a raise (change in income: most goods are normal goods (higher-income people buy more, some good are inferior goods (higher-income people buy less, steak is a normal good. In addition, it shifts in response to changes in the number of buyers in the market: example: housing in vancouver. Supply: (sellers: we will think of the sellers as firms producing and selling goods, factors that affect quantity supplied by a firm, price, price goes up the more willing you will be to supply, cost.

Related Questions

1. When demand is inelastic, a decrease in price will cause

a. an increase in total revenue.

b. a decrease in total revenue.

c. no change in total revenue but an increase in quantity demanded.

d.no change in total revenue but a decrease in quantity demanded.

2. For which of the following types of goods would the income elasticity of demand be positive and relatively large?

a. all inferior goods

b. all normal goods

c. goods for which there are many complements

d. luxuries

3. Which of the following should be held constant when calculating the income elasticity of demand?

a. the quantity of the good demanded

b. the price of the good

c. income

d. All of the above should be held constant.

4. Suppose goods A and B are substitutes for each other. We would expect the cross-price elasticity between these two goods to be

a. positive.

b. negative.

c. either positive or negative. It depends on whether A and B are normal goods or inferior goods.

d. either positive or negative. It depends on whether the current price level is on the elastic or inelastic portion of the demand curve.

5. As the price elasticity of supply increases, the supply curve

a. becomes flatter

b. becomes steeper

c. becomes downward sloping.

d. shifts to the right.

brownsea-lion330

A. There are some "status goods" like Rolex watches, that people want to own because they are expensive. In contradiction to the law of demand, if Rolex watches were less expensive, few "status-seeking" consumers would demand them. Reconcile status products or services with the law of demand. How does the existence of cheap "knock-off" imitations of Rolex watches fit with the law of demand?

B. Evidence suggests that babies are a normal good for lower income earners and an inferior good for higher income earners. Use the income elasticity of demand to explain what this means, using the definitions of "normal" and "inferior" goods.

C. Roses sell for about $40 a bouquet most of the year, and worldwide sales are 6 million bouquets per month. Every February, the price of roses doubles to $80 a bouquet, but the quantity of roses demanded and sold also increases, to 24 million bouquets per month. The cost of producing roses doesn't change throughout the year. Can you explain what else is going on that saves the law of demand?

D. Your business is about to launch an advertising campaign, announcing your new low prices. You hope the ads will bring in many more customers. Explain why you need to be concerned about your elasticity of supply.

turquoiseelk931

(1) If a demand curve shifts to the left, then:
a) price would go up and quantity would go down
b) price would go down and quantity would go up
c) a lower price and quantity would result
d) a higher price and quantity would result

(2) Demand and supply curves are drawn assuming ceterisparibus.This means that:
a) economists ignore all assumptions
b) economists don't watch for the fallacy of false cause
c) changes will be proportional
d) all other things besides price and quantity are unchanged

(3) If steak and potatoes are complements, when the price ofsteakgoes up, the demand curve for potatoes:
a) shifts to the right
b) shifts to the left
c) stays the same
d) shifts to the right and then moves back

(4) Given that chicken and beef are substitute goods, if thepriceof chicken decreases substantially, there would be:
a) an increase in the demand for beef
b) a decrease in the demand for beef
c) a decrease in the quantity for beef demanded
d) no change in the demand for beef

(5) Every day for the past two years you've had ham and cheese onawhole wheat bagel for lunch at Bungalow Bob's BagelBoutique.However, the price of whole wheat bagels has risen by 10cents sotoday you decide to have ham and cheese on rye bagel. Inthis case,whole wheat and rye bagels are best considered:

a) superior goods
b) normal goods
c) substitute goods
d) complementary goods

(6) For most goods, purchases tend to rise with increases inbuyers'incomes and to fall with decreases in buyers' incomes. Suchgoodsare known as:

a) inferior goods
b) direct goods
c) normal goods
d) luxury goods

(7) Economists know that a particular good can be classified asaninferior good if a(n)______ increase in buyers' incomecausesa(n)_____

a) increase; increase in demand
b) increase; increase in quantity demanded
c) increase; decrease in demand
d) decrease; decrease in demand

(8) An increase in the demand for medical services caused byanincrease in the number of people 65 is most likely attributabletowhich demand shifter?

a) income
b) consumer preferences
c) prices of other goods
d) demographic characteristics

(9) Which of the following would shift the demand curve fornewtextbooks to the right?

a) a decrease in the price of paper
b) a fall in the price of used textbooks
c) an increase in college enrollments
d) a fall in the price of new textbooks

(10) How a supply curve is sloped and located depends on:

a) technology
b) resources prices
c) the number of producers or sellers
d) all of the above

(11) A decrease in supply means:

a) a shift to the left of the entire supply curve
b) moving downward (to the left) along the supply curve withlowerprices
c) less will be demanded at every price
d) more will be supplied at every price

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ECON 105 Lecture Notes - Lecture 4: European Cooperation In Science And Technology, Marginal Cost, Opportunity Cost

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