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2023-07-08 00:05Module 7-書(2022-L1V2)P363-6.1 Tariffs 標題下方第一段的最后一句話,怎么理解?the large country cannot gain by imposing a tariff unless it imposes an even larger loss on its trading partner. 這里說的是cannot gain by imposing a tariff, 但是前面又說it is possible for a large country to increase its welfare? 這不是前后矛盾了嗎?
所屬:CFA Level I > Economics 視頻位置 相關試題
來源: 視頻位置 相關試題
1個回答
Alex助教
2023-07-09 00:51
該回答已被題主采納
你好同學
有關關稅的計算(下頁圖表中)都是關于小國的??梢钥闯?,有了關稅后National welfare是下降的。
但是對于大國來說,大國加關稅以后,小國為了保持住市場份額,會降價。加了關稅,物價沒有上漲,大國國民沒有deadweight loss,反而收獲了一筆關稅。
你標黃的最后一句意思是說。如果小國偏不降價,沒有出現(xiàn)“l(fā)arger loss on its trading partner"的情況,那么大國也是會出現(xiàn)National welfare下降的情況的。
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追問
怎么理解截圖中的這句話:So, in theory it is possible for a large country to increase its welfare by imposing a tariff if 2) the deadweight loss as a result of the tariff (see below) is smaller than the benefit of improving its terms of trade. 不明白,為什么關稅造成的無謂損失小于改善其貿易條件的好處,一個大國就有可能通過征收關稅來增加其福利?書上第幾頁有這個知識點?
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追答
就是前半段話里When a large country imposes a tariff, the exporter reduces the price of the
good to retain some of the market share it could lose if it did not lower its price. This
reduction in price alters the terms of trade and represents a redistribution of income
from the exporting country to the importing country
大國是產品主要消費國,那么大國增加關稅勢必導致大國國內該商品價格增高,小國為了保證市場份額,維持利潤,會降低價格。那么大國會多收取一部分關稅。表二里,national welfare部分是-(b+d).假設大國多收取的關稅是e.那么大國最終的福利e-(b+d),要看e跟b+d的大小。e比b+d大的話,大國總福利是增加的。
