Practise IB Economics SL 1.1.5 by using the circular flow model to explain leakages, injections and changes in national income.
Explain how an increase in leakages can affect the size of the circular flow of income.
Answers may include:
- definitions of leakages, circular flow of income
- diagram of the circular flow of income
- explanation that when leakages increase money flows in the circular flow of income will fall and reduce the size of the circular flow of income
- examples of where an increase in leakages have reduced national income.
Assessment Criteria
Level 0 (0 marks): The work does not meet a standard described by the descriptors below.
Level 1 (1-3 marks): There is little understanding of the specific demands of the question. Relevant economic terms are not defined. There is very little knowledge of relevant economic theory. There are significant errors.
Level 2 (4-6 marks): There is some understanding of the specific demands of the question. Some relevant economic terms are defined. There is some knowledge of relevant economic theory. There are some errors.
Level 3 (7-8 marks): There is understanding of the specific demands of the question. Relevant economic terms are defined. Relevant economic theory is explained and applied. Where appropriate, diagrams are included and applied. Where appropriate, examples are used. There are few errors.
Level 4 (9-10 marks): There is clear understanding of the specific demands of the question. Relevant economic terms are clearly defined. Relevant economic theory is clearly explained and applied. Where appropriate, diagrams are included and applied effectively. Where appropriate, examples are used effectively. There are no significant errors.