ECO204Y5 Lecture Notes - Lecture 8: Economic Surplus, Weighted Arithmetic Mean

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blushmoose569

18 Oct 2017

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Additional utility generated when i goes up by 1. Individual demand -> mkt demand: if individual demands are downward sloping, market demand will also be downward sloping. Although the individual demand curves are linear when q>0 , the market demand function is kinked due to the entry /exit of consumers. If a new consumer enters (say, individual d) the market demand curve will shift right. Fators which affect individual demand will influence market demand -> stores want to learn about consumers to estimate elasticity. %change in q > % change in p. If |e| > 1 : large elasticity -> consumers are very sensitive to change in p or change in i. If |e| < 1 ; small elasticity: net sensitive to changep or change i. Use arc elasticity when there is a significant/large/substantial increase/decrease. % change q < % change in p. Demand functions for the individual indicate the individuals willingness to pay.

Related Questions

11. [3 Marks) Assume all markets are perfectly competitive with downward sloping demand and upward sloping supply. Cross-price elasticity of cocktails sold in bars with respect to the price of "ready-to-drink" cocktails sold in supermarkets (RTDs) has been estimated at -0.18. If the government increases the tax on RTDs, what is the effect on the equilibrium price and quantity in the market for cocktails sold in bars? A. | P; 1 Q B. † P; Q C. P; 1 Q D. P;IQ E. I know I will get 0 marks for choosing E, but I choose it anyway.

Demand curve:

The demand curve is the graph depicting the relationship between the price of a certain commodity and the amount of it that consumers are willing and able to purchase at any given price. It is a graphic representation of a market demand schedule. The demand curve for all consumers together follows from the demand curve of every individual consumer: the individual demands at each price are added together, assuming independent decision-making. Demand curves are used to estimate behaviors in a competitive market and are often combined with supply curves to estimates the equilibrium price. Demand curves are usually considered as theoretical structures that are expected to exist in the real world, but real-world measurements of actual demand curves are difficult and rare.

The demand curve will move downward from the left to the right, which expresses the law of demand.

If the price of corn rises, consumers will have an incentive to buy less corn and substitute other foods, so the total quantity of corn consumers’ demand will fall. The degree to which rising price translates into falling demand is called demand elasticity or price elasticity of demand. If a factor besides price or quantity changes, a new demand curve needs to be drawn. For example, say that the population of an area explodes, increasing the number of mouths to feed. In this scenario, more corn will be demanded even if the price remains the same, meaning that the curve itself shifts to the right.

According to my view, the demand curve for the Apple Video iPod will increase. According to the given paragraph iPod is thinner and lighter. The hardware and software ecosystem offers good content options and also portable. These are the main qualities expected by the customers. Henceforth customer wants to buy this product in the future also. If the price of the product increases in the future the demand for the product also increases because customers demand more products thinking of price increase in the future. At the same time if the price decreases in this case also customers will buy the product because they think that the good product is coming at a reasonable price. The demand curve for Apple Video iPod in the future may be like follows.

What is your opinion on a competitor product which has similar features to that of an i-pad or say it is better than i-pad and is offered at a comparatively cheaper price, how this will affect the i-pad demand curve and why?

bronzemule740

1. In economics, the demand for a good refers to the amount of the good that people:
a. Will buy at alternative income levels
b. Need to achieve a minimum standard of living.
c. Will buy at various prices
d. Would like to have if the good were free
2. The term ceteris paribus means that:
a. What is for the individual is not necessarily true for the whole
b. All variables except those specified are constant
c. Everything is variable
d. No one knows which variables will change and which will remain constant.
3. When economist talk about supply, they are referring to a relationship between price received for each unit sold and the ____________________.
a. Quantity supplied
b. Demand schedule
c. Demand curve
d. Market price
4. But nearly all supply curves share a basic similarity: they slop______________.
a. Up from left to right
b. Down from left to right
c. Up from right to left
d. Down from right to left
5. The nature of demand indicates that as the price of a good increases:
a. Suppliers wish to sell less of it.
b. Buyers desire to purchase less of it
c. More of it is desired
d. More of it is produced
6. Any given demand or supply curve is based on the certeris paribus assumption that _______.
a. Everything is variable
b. All else is held equal
c. No one knows which variables will change and which will remain constant
d. What is true for the individual is not necessary true for the whole.
7. Economist refer to the relationship that a higher price leads to lower quantity demand as the ______________.
a. Price model
b. Law of demand
c. Market equilibrium
d. Income gap
8. A perfect elastic supply curve is:
a. Vertical
b. Downward sloping to the left
c. Horizontal
d. Upward sloping to the right
9. A 10 percent increase in the price of soda leads to a 20 percent increase in the quantity of iced tea demanded. It appears that:
a. Elasticity of demand for iced tea is 2 and is elastic
b. Cross-price elasticity of demand for iced tea is -2
c. Cross-price elasticity of demand for soda is -0.5
d. Elasticity of demand for soda 0.5 AND IS INELASTIC
10. ___________ is the change in what is on the horizontal axis (quantity) divided by the change in what is the vertical axis (price).
a. Elasticity
b. Supply
c. Demand
d. Revenue
11. A severe freeze has once again damaged the Florida orange crop. The impact on the market for orange juice will be a leftward shift of:
a. The supply curve and the rightward shift of the demand curve resulting in a higher equilibrium price
b. Both the supply and demand curves
c. The supply curve
d. The demand curve, as consumers try to economize because the shortage.
12. Got the answer.
13. A drought decreases the supply of agricultural products, which means that at any given price a lower quantity will be supplied; conversely, especially good weather would shift the _____________.
a. Demand curve to the right
b. Supply curve to the left
c. Supply curve to the right
d. Demand curve to the left
14. Interpret the following statements:

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ECO204Y5 Lecture Notes - Lecture 8: Economic Surplus, Weighted Arithmetic Mean

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