本题目来源于试卷: IB Economics Unit 1.1: What is Economics? Scarcity Choice and the PPC，类别为 IB经济学
[单选题]
Which of the following statements is not true about the circulad:,e.h vhruoz0nftt 7 u, 0o+pr flow of1 zhrx 0o*aqtxpj a/., income model torah.xxz*1ajq0 /,p?
A. It illustrates interdependence between various economic agents interacting within an economic system
B. It shows the inputs, outputs, income, and expenditure flowing within an economy, along with multiple leakages and injections
C. If injections are smaller than leakages then national income will tend to decrease
D. If injections increase, then leakages will tend to decrease
参考答案: D
本题详细解析:
D If injections increase, then national income will tend to increase, but it does not necessarily mean that leakages will tend to decrease. It is possible that both injections and leakages increase or decrease at the same time. Choices A and B are true statements about the circular flow of income model: it shows interdependence because the flows of inputs, outputs, income, and expenditure contribute to each other. For example, income paid to households becomes expenditure on production. Choice C is also true: if the sum of export revenue, government expenditure, and investment expenditure is smaller than that of import expenditure, taxes, and saving, then the value of national income will decrease.
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