ECO-4 Lecture Notes - Lecture 6: Reservation Price, Demand Curve

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7 Aug 2020

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Predicting changes in prices and quantities supply curve. Shifts in the supply curve is based on production costs. Factors shifting the supply curve to the right: decrease in cost of inputs, improvement in technology, improvement in weather (for agricultural products, increase in number of suppliers, expectation of lower prices in the future. Assumption: all exchange is purely voluntary i. e. exchange cannot take place unless the buyer"s reservation price > seller"s reservation price. Buyer"s surplus = difference between reservation price and price they actually pay. Seller"s surplus = difference between price they receive and reservation price. Total surplus = buyer"s surplus + seller"s surplus. Example: buyer"s reservation price for a tv is ,000 and seller"s reservation price is ,000. Buyer"s surplus = 10,000 7,000 = 3,000. Seller"s surplus = 7,000 5,000 = 2,000. Cash on the table: unexploited gains from exchange e. g. when price < equilibrium.

Related Questions

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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ECO-4 Lecture Notes - Lecture 6: Reservation Price, Demand Curve

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