WAEC 2020 Economics · Question 29
When the production possibility curve shifts outwards, the economy experiences
Options
- A.growth
- B.over-production
- C.inefficient use of resources
- D.under-production
Answer: A. growth
Explanation written with AI and checked against the answer key
Step 1: Analyze the question The question asks what an outward shift of the Production Possibility Curve (PPC) means for an economy.
Step 2: Explain the concept The PPC shows the maximum combinations of two goods an economy can produce when it uses all its resources fully and efficiently.
- Points on the curve: resources are fully and efficiently used.
- Points inside the curve: resources are underused or wasted (inefficiency or unemployment).
- Points outside the curve: not attainable with current resources.
- A shift of the whole curve outward: the economy's productive capacity has increased.
Step 3: Work through the options An outward shift happens when:
- the quantity of resources increases (for example, new oil discoveries, a larger labour force),
- the quality of resources improves (for example, better education and training),
- technology improves.
All of these mean the economy can now produce more than before. This is economic growth.
- A. Growth: correct. Productive capacity has expanded.
- B. Over-production: this is a market surplus idea and has nothing to do with a PPC shift.
- C. Inefficient use of resources: this is shown by a point inside the curve, not by a shift of the curve.
- D. Under-production: this also relates to being inside the curve, not to the curve moving outward.
Step 4: Answer The correct option is A. growth.
Tip: Remember the difference between movement and shift:
- Movement to a point inside the curve means inefficiency or unemployment.
- Movement along the curve means a trade-off (opportunity cost).
- Shift outward means economic growth.
- Shift inward means economic decline.
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