市场均衡的变化 | 武大经济学课

总结于武大经济学课

一：市场供给与需求的均衡变化图

Fig. 1 Fig. 2

二：The Change of Equilibrium: Effect of Shifts in Supply or Demand----Interpreting Changes in Price and Quantity

• Questions:

  • Think about what would happen if this winter became cooler and longer?
  • For example, what would be the effect on electric power?
  • Or the effect on vegetables?
  • Think about what would happen if EU imposed antidumping tax on China’s shoes?

• Conclusion:

  • The increase of demand: price ↑ ， quantity ↓
  • The increase of supply: price ↓ ， quantity ↑

三：市场需求增长的影响

Fig. 3 Fig. 4

四：市场供给增长的影响

Fig. 5 Fig. 6

五：What Happens to Price and Quantity When Supply or Demand Shifts?

Fig. 7

六：Summary

• How to predict the impact of an event on price of some goods？
• Which side of S and D it belongs to?
• Direction of curves change
• Changes of equilibrium

Fig. 8