Microeconomics · 免费预览
曲线移动与沿曲线移动之别
该商品自身的价格变化会使你沿着曲线移动，而任何决定因素的变化都会把整条曲线推移到新的位置；判断究竟发生了哪一种变化，正是市场预测的核心技能。
1. Two ways a curve can change
Two ways a curve can change
2. Tracing a shift through the market
Tracing a shift through the market
3. The classic confusions
The classic confusions
4. Why the distinction earns its precision
Why the distinction earns its precision
5. Classify the event
Frost destroys half the orange crop. Which of the following correctly describes the immediate effect in the orange juice market?
6. Reading the outcome backwards
Over a season, the price of hotel rooms in a resort town fell and the quantity of rooms rented also fell. Which story fits this pattern?
7. The new equilibrium price
A market has demand Q = 90 - P and supply Q = 2P. Then a rightward technology shift changes supply to Q = 2P + 30. Compute the new equilibrium price in dollars and write the number.
8. Tracing cheaper leather
The price of leather falls. What happens in the shoe market?
9. Both numbers fell
Over a season a resort town's hotel room price and the number of rooms rented both fell. Which explanation fits?
10. After the technology shift
A market has demand Q = 90 - P and supply Q = 2P, and a technology improvement shifts supply to Q = 2P + 15. Compute the new equilibrium quantity, and write the number.