ECS1601 ECONOMICS IA (PDF) | 2026 EXAM QUESTIONS AND
ANSWERS + RATIONALES | STUDY GUIDE | 100% CORRECT
1. What is the primary purpose of the ECS1601 module?
A) To explain the functioning of the economy as a whole and assess its performance
B) To analyse individual consumer behaviour and market structures
C) To teach advanced econometric modelling techniques
D) To focus exclusively on the history of economic thought in South Africa
Correct Answer: A) To explain the functioning of the economy as a whole and assess its
performance
Rationale: According to the official UNISA module description, the purpose of ECS1601 is to
introduce students to basic macroeconomic theory and variables which will enable students to
explain the functioning of the economy as a whole and assess the performance of the economy .
The module focuses on macroeconomics, distinguishing it from microeconomic analysis.
2. Which of the following is a FLOW variable?
A) Wealth
B) Capital
C) Income
D) Assets
Correct Answer: C) Income
Rationale: A flow variable is measured over a period of time, such as income, expenditure, or
savings . In contrast, stock variables represent a quantity at a specific point in time, such as
wealth, assets, and liabilities . Profits are also classified as a flow variable .
3. Which statement about stock and flow variables is correct?
A) Savings is a stock variable
B) Wealth is a flow variable
C) Monthly saving is a flow variable contributing to a stock variable
D) Assets and liabilities are flow variables
Correct Answer: C) Monthly saving is a flow variable contributing to a stock variable
Rationale: Monthly saving is a flow variable measured over time, and it contributes to the
accumulation of a stock variable, which is the total wealth or savings . Profits, income, and
expenditure are flow variables, while wealth, assets, and liabilities are stock variables .
4. In the circular flow of income, what do flows (1) and (3) represent?
A) Savings and investment
B) Taxes and government spending
C) Spending, with firms spending on the factor market and households on the goods market
D) Imports and exports
, Correct Answer: C) Spending, with firms spending on the factor market and households on the
goods market
Rationale: In the circular flow model, flows represent spending in different markets. Firms spend
on the factor market to acquire resources, and households spend on the goods market to purchase
goods and services .
5. Which of the following represents a LEAKAGE from the circular flow of income and spending
in South Africa?
A) Investment by a Lesotho beer company in a new brewery in South Africa
B) A decision by a major supermarket chain to sell chicken from Brazil
C) The sale of fruit exports to the European Union
D) Defence expenditure by the South African government via contracts with local companies
Correct Answer: B) A decision by a major supermarket chain to sell chicken from Brazil
Rationale: Leakages are withdrawals from the circular flow, such as savings, taxes, and imports .
The decision to sell chicken from Brazil represents an import (Z), which is a leakage from the
domestic economy . Exports (X), investment (I), and government spending (G) are injections
into the circular flow.
6. What is the effect of savings on the circular flow of income?
A) Savings are injections that increase the volume of income flow
B) Savings are leakages that lead to a decrease in the volume of income flow
C) Savings have no effect on the circular flow
D) Savings are equivalent to investment in the circular flow
Correct Answer: B) Savings are leakages that lead to a decrease in the volume of income flow
Rationale: Savings are considered leakages from the circular flow, leading to a decrease in the
volume of income flow . This is because when households save a portion of their income, it is
not immediately spent on goods and services, reducing the flow of spending in the economy.
7. Which flows represent taxes in the circular flow model?
A) Flows from firms to households
B) Flows D and E, from households and firms to the government
C) Flows from the government to households and firms
D) Flows from the financial sector
Correct Answer: B) Flows D and E, from households and firms to the government
Rationale: In the circular flow model, taxes are represented as flows from households and firms
to the government . These are leakages from the circular flow, as they remove income from the
spending stream.
8. Which statement about investment and financial institutions is correct?
A) Financial institutions act as intermediaries between savers and investors
, B) Investment is merely saving
C) Banks do not create money
D) Financial institutions are not part of the circular flow
Correct Answer: A) Financial institutions act as intermediaries between savers and investors
Rationale: Financial institutions act as intermediaries between savers and investors, channeling
funds from those who have surplus money to those who need it for investment . Investment
involves the production or purchase of capital goods, whereas saving is the act of setting aside
income .
9. What does saving represent when households deposit income in a bank account?
A) Investment in capital goods
B) The act of setting aside income
C) A leakage that increases the flow of income
D) An injection into the circular flow
Correct Answer: B) The act of setting aside income
Rationale: When households deposit income in a bank account, they are saving, which indicates
the act of setting aside income . This is distinct from investment, which refers to the production
or purchase of capital goods .
10. Which of the following is NOT a function of money?
A) Medium of exchange
B) Unit of account
C) Store of value
D) Stock variable
Correct Answer: D) Stock variable
Rationale: Money serves three primary functions: a medium of exchange, a unit of account, and
a store of value . It is not classified as a function of money to be a "stock variable," which is a
characteristic of certain economic quantities, not a function of money itself .
11. What is the basis of the modern banknote's value?
A) The gold standard
B) The value of the paper it is printed on
C) Public confidence in the government's ability to manage the money supply effectively
D) The backing of commercial banks
Correct Answer: C) Public confidence in the government's ability to manage the money supply
effectively
Rationale: The value of modern banknotes is based on public confidence in the government's
ability to manage the money supply effectively . This is known as fiat money, which has no
ANSWERS + RATIONALES | STUDY GUIDE | 100% CORRECT
1. What is the primary purpose of the ECS1601 module?
A) To explain the functioning of the economy as a whole and assess its performance
B) To analyse individual consumer behaviour and market structures
C) To teach advanced econometric modelling techniques
D) To focus exclusively on the history of economic thought in South Africa
Correct Answer: A) To explain the functioning of the economy as a whole and assess its
performance
Rationale: According to the official UNISA module description, the purpose of ECS1601 is to
introduce students to basic macroeconomic theory and variables which will enable students to
explain the functioning of the economy as a whole and assess the performance of the economy .
The module focuses on macroeconomics, distinguishing it from microeconomic analysis.
2. Which of the following is a FLOW variable?
A) Wealth
B) Capital
C) Income
D) Assets
Correct Answer: C) Income
Rationale: A flow variable is measured over a period of time, such as income, expenditure, or
savings . In contrast, stock variables represent a quantity at a specific point in time, such as
wealth, assets, and liabilities . Profits are also classified as a flow variable .
3. Which statement about stock and flow variables is correct?
A) Savings is a stock variable
B) Wealth is a flow variable
C) Monthly saving is a flow variable contributing to a stock variable
D) Assets and liabilities are flow variables
Correct Answer: C) Monthly saving is a flow variable contributing to a stock variable
Rationale: Monthly saving is a flow variable measured over time, and it contributes to the
accumulation of a stock variable, which is the total wealth or savings . Profits, income, and
expenditure are flow variables, while wealth, assets, and liabilities are stock variables .
4. In the circular flow of income, what do flows (1) and (3) represent?
A) Savings and investment
B) Taxes and government spending
C) Spending, with firms spending on the factor market and households on the goods market
D) Imports and exports
, Correct Answer: C) Spending, with firms spending on the factor market and households on the
goods market
Rationale: In the circular flow model, flows represent spending in different markets. Firms spend
on the factor market to acquire resources, and households spend on the goods market to purchase
goods and services .
5. Which of the following represents a LEAKAGE from the circular flow of income and spending
in South Africa?
A) Investment by a Lesotho beer company in a new brewery in South Africa
B) A decision by a major supermarket chain to sell chicken from Brazil
C) The sale of fruit exports to the European Union
D) Defence expenditure by the South African government via contracts with local companies
Correct Answer: B) A decision by a major supermarket chain to sell chicken from Brazil
Rationale: Leakages are withdrawals from the circular flow, such as savings, taxes, and imports .
The decision to sell chicken from Brazil represents an import (Z), which is a leakage from the
domestic economy . Exports (X), investment (I), and government spending (G) are injections
into the circular flow.
6. What is the effect of savings on the circular flow of income?
A) Savings are injections that increase the volume of income flow
B) Savings are leakages that lead to a decrease in the volume of income flow
C) Savings have no effect on the circular flow
D) Savings are equivalent to investment in the circular flow
Correct Answer: B) Savings are leakages that lead to a decrease in the volume of income flow
Rationale: Savings are considered leakages from the circular flow, leading to a decrease in the
volume of income flow . This is because when households save a portion of their income, it is
not immediately spent on goods and services, reducing the flow of spending in the economy.
7. Which flows represent taxes in the circular flow model?
A) Flows from firms to households
B) Flows D and E, from households and firms to the government
C) Flows from the government to households and firms
D) Flows from the financial sector
Correct Answer: B) Flows D and E, from households and firms to the government
Rationale: In the circular flow model, taxes are represented as flows from households and firms
to the government . These are leakages from the circular flow, as they remove income from the
spending stream.
8. Which statement about investment and financial institutions is correct?
A) Financial institutions act as intermediaries between savers and investors
, B) Investment is merely saving
C) Banks do not create money
D) Financial institutions are not part of the circular flow
Correct Answer: A) Financial institutions act as intermediaries between savers and investors
Rationale: Financial institutions act as intermediaries between savers and investors, channeling
funds from those who have surplus money to those who need it for investment . Investment
involves the production or purchase of capital goods, whereas saving is the act of setting aside
income .
9. What does saving represent when households deposit income in a bank account?
A) Investment in capital goods
B) The act of setting aside income
C) A leakage that increases the flow of income
D) An injection into the circular flow
Correct Answer: B) The act of setting aside income
Rationale: When households deposit income in a bank account, they are saving, which indicates
the act of setting aside income . This is distinct from investment, which refers to the production
or purchase of capital goods .
10. Which of the following is NOT a function of money?
A) Medium of exchange
B) Unit of account
C) Store of value
D) Stock variable
Correct Answer: D) Stock variable
Rationale: Money serves three primary functions: a medium of exchange, a unit of account, and
a store of value . It is not classified as a function of money to be a "stock variable," which is a
characteristic of certain economic quantities, not a function of money itself .
11. What is the basis of the modern banknote's value?
A) The gold standard
B) The value of the paper it is printed on
C) Public confidence in the government's ability to manage the money supply effectively
D) The backing of commercial banks
Correct Answer: C) Public confidence in the government's ability to manage the money supply
effectively
Rationale: The value of modern banknotes is based on public confidence in the government's
ability to manage the money supply effectively . This is known as fiat money, which has no
