The J-curve effect theorizes a depreciation will cause a:

Question

BlackTom AI · Accepted Answer

A depreciation raises the domestic-currency price of imports immediately while quantities respond more slowly; after that exports become more competitive and import volumes fall, so the trade balance first worsens and then improves — this is the J-curve.

Relevant concepts:
- Trade balance (TB) = value of exports − value of imports (in domestic currency).
- Exchange rate depreciation = domestic currency loses value, so foreign goods cost more in domestic currency; domestic goods are cheaper for foreigners.
- Marshall–Lerner condition: a depreciation will improve the trade balance in the long run only if the sum of the absolute price elasticities of demand for exports and imports exceeds 1 (|εx| + |εm| > 1).
- Time lags: prices adjust quickly, quantities (trade volumes) adjust more slowly due to contracts, invoicing, and adjustment costs.

Step-by-step reasoning and intermediate steps:
1. Let TB = E · X − P · M, where E is exchange rate (domestic currency per unit foreign), X export quantity valued in foreign currency, P price of imports in foreign currency, and M import quantity. A depreciation means E rises.
2. Short run: quantities X and M are roughly fixed. The immediate effect of higher E is to raise the domestic-currency value of imports (E·P·M) and increase the domestic-currency value of exports only if export prices in foreign currency change; typically the import bill rises faster → TB falls (worsens).
3. Over time: import demand falls and export demand rises as prices in the relevant currencies change. If |εx| + |εm| > 1 (Marshall–Lerner), quantity responses are large enough that increased export revenue and reduced import spending more than offset the initial price effect, so TB improves.
4. Graphically TB vs. time traces a “J”: initial dip then recovery above the starting point.

Why the single-outcome choices would be incomplete:
- Saying only “a short-run deterioration” omits the subsequent improvement and the role of elasticities.
- Saying only “a long-run improvement” ignores the initial worsening and the condition needed (Marshall–Lerner).
- Saying only “no change” ignores typical price and quantity dynamics.

Conclusion: Because a depreciation typically causes an initial deterioration in the trade balance followed by a later improvement (assuming Marshall–Lerner holds), the correct choice is “all of these,” which matches the provided answer.

The J-curve effect theorizes a depreciation will cause a:单项选择题

类似问题

The J-curve effect theorizes a depreciation will cause a:

Which kind of lags help explain why the J-curve effect occurs? Check all correct answers Each choice is worth 1 point, which you will receive if you correctly either check or do not check the choice

Which of the following conversions results in the formation of a different shape around the carbon atom?

Consider compound X which is an ester:X reacted with hot aqueous sodium hydroxide solution and formed compounds M and N. X reacted with an aqueous sulfuric acid solution and produced compounds M and Q. M is a :

A compound, Y, when mixed with an aqueous solution of sodium carbonate, formed bubbles of gas. Compound Y:

Which of the following compounds would not turn acidified potassium dichromate green?

What is the product of the oxidation of 2-propanol with PCC?

Which pairing of alcohol and class is incorrect?

更多留学生实用工具

智能学习助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单