「 每日一練」 ALevel經(jīng)濟例題解析及練習Analysis of trade

「每日一練ALevel Economy」

今日知識點：Analysis of trade

例題

Without trade, PD = $3000, Q = 400; in world markets, PW = $1500

Under free trade, how many TVs will the country import or export?

Identify consumer surplus, producer surplus, and total surplus without trade, and with trade.

---

解析

Under free trade,

• domestic consumers demand 600
• domestic producers supply 200

imports = 400

Without trade,

CS = A

PS = B + C

Total surplus = A + B + C

With trade,

CS = A + B + D

PS = C

Total surplus = A + B + C + D

下面我們?yōu)榇蠹覝蕚淞艘坏劳愋偷念}目，請大家一起來試試解答。

Your turn

Question: Tariff on Cotton Shirts

PW = $20

Tariff:? T = $10/shirt

Under free trade, how many cotton shirts will the country import or export?

Identify consumer surplus, producer surplus, and total surplus without trade, and with trade.

.

.

.

.

.

.

.

.

.

.

.

.

.

Correct Answer：

Consumers must pay $30 for an imported shirt. So, domestic producers can charge $30 per shirt.

In general, the price facing domestic buyers & sellers equals (PW + T).

以上就是關于【「 每日一練」 ALevel經(jīng)濟例題解析及練習Analysis of trade】的解答，如需了解學校/賽事/課程動態(tài)，可至翰林教育官網(wǎng)獲取更多信息。

往期文章閱讀推薦：

2026 ALEVEL 夏考A率出爐！愛德思vs牛津AQA，哪些科目真的“好出分”？

CAIE A-Level分數(shù)線新鮮出爐！三大考試局查分攻略+出分急救指南速覽！