YL2023-07-28 22:19:19

Module 8-Reading 14-书（2022-L1V2）P458-Example 8-1. Question 1-请解释下Marshall-Lerner condition的核心要点 2. Solution to 1最后一段，Because the Marshall–Lerner condition is not satisfied, exchange rate movements do not move the trade balance in the expected direction [i.e., appreciation (depreciation) of the currency does not decrease (increase) the trade balance]. 请问这句话涉及的知识点，在教材第几页有明确写？并且接下去的这句话However, note that with different import/export weights and the same elasticities, the Marshall–Lerner condition would be met. 这句话涉及的知识点，在教材第几页？3. Solution to 1最后一段的最后一句话，4和7，这两个数字哪儿得出的？为什么the condition would be met, ωX 必须大于 4/7？