02.单选题 已收藏 标记 纠错 Equality between aggregate expenditure and aggregate output implies that the government‘s fiscal deficit must equal: A Private saving - Investment - Net exports. B Private saving - Investment + Net exports. C Investment - Private saving + Net exports. 查看解析 上一题 下一题 正确答案A 您的答案A本题平均正确率：51% GDP calculation难度：一般 推荐：      答案解析 The fundamental relationship among saving, investment, the fiscal balance, and the trade balance is S = I (G - T) (X - M). This form of the relationship shows that private saving must fund investment expenditures, the government fiscal balance, and net exports (= net capital outflows). Rearranging gives G - T = (S -I) - (X - M). The government's fiscal deficit (G - I) must be equal to the private sector's saving/investment balance (S -I) minus net exports. 问：如图，紫色箭头标明的 1.aggregate output就是总收入 output为啥对应income？2.fiscal deficit是 G-T,G-T应该是盈余或者赤子吧，感觉表达的也不严谨？

01.单选题 已收藏 标记 纠错 In 2013, a calligraphyis produced and sold for $3,000. The expenses involved in producing the painting amounted to $1,000. What is the value added by the final step of creating the painting based on the sum-of-value-added method of calculating GDP: A $2000. B $3000. C $5000. 查看解析 下一题 正确答案A 您的答案A本题平均正确率：77% GDP calculation难度：一般 推荐：      答案解析 This is the value added by the artist: $3,000 — $1,000 = $2,000. 问：这个是基础课里的截图：她的意思是 第一个0.15也要算进来，对应这道题就是第一个1000块钱也应该算进来吗？ 是否有矛盾？

老师这几个formula在哪儿呀？视频里并没有说呀？？

请问正式考试时，需要查表得到的数据会直接给出来吗？

请问正式考试时，需要查表得到的数据会直接给出来吗？

为了让NX变低，G-T不应该和I也是变高比较好吗 为什么视频里说的是I要高，G-T要低呢？

这个题不是很明白 麻烦解释一下 这里的advance就是unearned revenue我理解，然后税法是cash basis，那收到货款即记账，所以年底unearned revenue就是十万啊，又减去十万得到0是什么操作啊？ 另外助教李老师能不能根据我问的题给我学习水平分析一波，谢谢！

老师，问一下什么是repo margin？教程里将是抵押品折扣，什么是抵押品折扣？能解释一下吗？谢谢

03.单选题 已收藏 标记 纠错 When a monopolist adopts first-degree price discrimination because of customers' differing demand elasticities, which of the following is the least likely outcome? A The price for a marginal unit decreases to less than the price for other units. B The monopolist shares the total surplus with consumers. C The output increases to the point at which price equals the marginal cost. 查看解析 上一题 提交试卷 正确答案B 您的答案B本题平均正确率：66% Price discrimination难度：一般 推荐：      答案解析 In a monopoly, perfect price discrimination results in the total surplus being kept by the producer, the monopolist. 问：为什么解析里说 一级价格歧视的时候P=MR啊？这道题C选项请再解释一下

该怎么理解这道题目