WGU C211 OA Global Economics Exam Question Bank (Latest
2026/2027 Edition) – 100% Correct Questions, Answers & Detailed
Rationales
Q1
A U.S. manufacturing firm is considering whether to produce components domestically
or outsource them to a supplier in Vietnam. Which economic concept best explains why
the firm might choose to outsource even if its domestic workers are more productive
per hour?
A) Absolute advantage
B) Comparative advantage
C) Economies of scale
D) Diminishing marginal returns
Answer: B
Rationales:
● A: Absolute advantage refers to producing more output per unit of input, which
would actually favor domestic production rather than outsourcing.
, ● B: Comparative advantage explains that trade benefits arise from lower
opportunity costs, allowing the firm to outsource even if domestic workers are
more productive overall.
● C: Economies of scale relate to cost reductions from increased production
volume, not the fundamental trade-off between domestic and foreign production.
● D: Diminishing marginal returns describes declining productivity from adding
more of one input, which is irrelevant to the outsourcing decision framework.
Q2
The World Bank classifies countries into income categories primarily based on which
indicator?
A) Total GDP
B) GDP per capita (GNI per capita)
C) Human Development Index
D) Purchasing Power Parity index
Answer: B
Rationales:
● A: Total GDP measures aggregate economic output but does not account for
population size, making it unsuitable for country classification.
● B: The World Bank uses Gross National Income (GNI) per capita, calculated using
the Atlas method, as its primary classification metric for income groups.
● C: The Human Development Index is used by the UNDP, not the World Bank, for
development rankings.
, ● D: Purchasing Power Parity is an adjustment method used in economic
comparisons but is not the standalone classification criterion.
Q3
A country has a current account surplus of $50 billion and a capital account deficit of
$30 billion. What must be true about its official reserves?
A) Reserves increased by $80 billion
B) Reserves decreased by $20 billion
C) Reserves increased by $20 billion
D) Reserves remained unchanged
Answer: C
Rationales:
● A: This incorrectly sums both accounts without applying the balance of
payments identity that requires the sum to equal zero.
● B: A capital account deficit means capital is flowing out, but the current account
surplus more than offsets this, making a decrease incorrect.
● C: By the balance of payments identity (Current Account + Capital Account +
Change in Reserves = 0), a $50B surplus and $30B deficit implies reserves must
increase by $20B to balance.
● D: Reserves cannot remain unchanged because the current and capital accounts
do not sum to zero.
, Q4
Which of the following is a primary function of the International Monetary Fund (IMF)?
A) Providing long-term development loans to low-income countries
B) Maintaining stable exchange rates through short-term lending and policy advice
C) Facilitating international trade negotiations between member countries
D) Setting global interest rates for sovereign debt
Answer: B
Rationales:
● A: Long-term development loans are the primary function of the World Bank, not
the IMF.
● B: The IMF's core mandate includes providing short-term balance of payments
assistance and macroeconomic policy advice to maintain exchange rate stability.
● C: Trade negotiations are conducted through the WTO, not the IMF.
● D: No international institution sets global interest rates; sovereign rates are
determined by domestic monetary policy and market forces.
Q5
Under a fixed exchange rate regime, if a country experiences a balance of payments
deficit, what action must the central bank typically take?
A) Sell foreign currency reserves and buy domestic currency
B) Buy foreign currency reserves and sell domestic currency
2026/2027 Edition) – 100% Correct Questions, Answers & Detailed
Rationales
Q1
A U.S. manufacturing firm is considering whether to produce components domestically
or outsource them to a supplier in Vietnam. Which economic concept best explains why
the firm might choose to outsource even if its domestic workers are more productive
per hour?
A) Absolute advantage
B) Comparative advantage
C) Economies of scale
D) Diminishing marginal returns
Answer: B
Rationales:
● A: Absolute advantage refers to producing more output per unit of input, which
would actually favor domestic production rather than outsourcing.
, ● B: Comparative advantage explains that trade benefits arise from lower
opportunity costs, allowing the firm to outsource even if domestic workers are
more productive overall.
● C: Economies of scale relate to cost reductions from increased production
volume, not the fundamental trade-off between domestic and foreign production.
● D: Diminishing marginal returns describes declining productivity from adding
more of one input, which is irrelevant to the outsourcing decision framework.
Q2
The World Bank classifies countries into income categories primarily based on which
indicator?
A) Total GDP
B) GDP per capita (GNI per capita)
C) Human Development Index
D) Purchasing Power Parity index
Answer: B
Rationales:
● A: Total GDP measures aggregate economic output but does not account for
population size, making it unsuitable for country classification.
● B: The World Bank uses Gross National Income (GNI) per capita, calculated using
the Atlas method, as its primary classification metric for income groups.
● C: The Human Development Index is used by the UNDP, not the World Bank, for
development rankings.
, ● D: Purchasing Power Parity is an adjustment method used in economic
comparisons but is not the standalone classification criterion.
Q3
A country has a current account surplus of $50 billion and a capital account deficit of
$30 billion. What must be true about its official reserves?
A) Reserves increased by $80 billion
B) Reserves decreased by $20 billion
C) Reserves increased by $20 billion
D) Reserves remained unchanged
Answer: C
Rationales:
● A: This incorrectly sums both accounts without applying the balance of
payments identity that requires the sum to equal zero.
● B: A capital account deficit means capital is flowing out, but the current account
surplus more than offsets this, making a decrease incorrect.
● C: By the balance of payments identity (Current Account + Capital Account +
Change in Reserves = 0), a $50B surplus and $30B deficit implies reserves must
increase by $20B to balance.
● D: Reserves cannot remain unchanged because the current and capital accounts
do not sum to zero.
, Q4
Which of the following is a primary function of the International Monetary Fund (IMF)?
A) Providing long-term development loans to low-income countries
B) Maintaining stable exchange rates through short-term lending and policy advice
C) Facilitating international trade negotiations between member countries
D) Setting global interest rates for sovereign debt
Answer: B
Rationales:
● A: Long-term development loans are the primary function of the World Bank, not
the IMF.
● B: The IMF's core mandate includes providing short-term balance of payments
assistance and macroeconomic policy advice to maintain exchange rate stability.
● C: Trade negotiations are conducted through the WTO, not the IMF.
● D: No international institution sets global interest rates; sovereign rates are
determined by domestic monetary policy and market forces.
Q5
Under a fixed exchange rate regime, if a country experiences a balance of payments
deficit, what action must the central bank typically take?
A) Sell foreign currency reserves and buy domestic currency
B) Buy foreign currency reserves and sell domestic currency
