情境
A government introduces a tax subsidy for electric cars, which simultaneously increases consumer demand (shift right) and producer supply (shift right). The market adjusts from the initial equilibrium to a new equilibrium with higher quantity and potentially ambiguous price change.
這張圖裡有什麼
看懂背後的決策。
01
Model subsidy as an external disturbance input
02
Represent market clearing as a feedback loop with price adjustment
03
Use demand and supply blocks that depend on both price and subsidy
When analyzing simultaneous shifts in both demand and supply due to a policy change, and the need to illustrate the dynamic adjustment to new equilibrium.