Microeconomics · 免费预览
支付意愿与需求曲线
需求曲线是按顺序排列的每位买方的支付意愿；价格下降会吸引更多买家，而当该商品自身价格之外的任何因素发生变化时，整条曲线都会移动。
1. Reservation prices
Reservation prices
2. The curve is the list, drawn
The curve is the list, drawn
3. What shifts the whole curve
What shifts the whole curve
4. A first algebraic form
A first algebraic form
5. Who buys at a given price
Six buyers have reservation prices for a jar of honey of 55, 48, 42, 35, 28 and 20 dollars. If the market price is 30 dollars, how many jars are demanded and why?
6. Substitutes and complements
Honey and jam are substitutes for many breakfast eaters, and honey and scones are complements. What happens to the demand curve for honey if the price of jam falls sharply while the price of scones is unchanged?
7. Quantity demanded from the line
A market demand curve is Q = 130 - 3P, where Q is jars per week and P is dollars per jar. Compute the quantity demanded when the price is 25 dollars and write the number.
8. Counting the buyers
Four buyers hold reservation prices of 60, 50, 41 and 30 dollars for a jar of rare honey. If the market price is 45 dollars, how many jars are demanded?
9. Movement or shift
Which of the following describes a movement along the demand curve for honey rather than a shift of the curve?
10. Quantity demanded by formula
A market demand curve is Q = 130 - 3P, where Q is jars per week and P is dollars per jar. Compute the quantity demanded at a price of 20 dollars, and write the number.