Which country is most likely to have a ƐD for imports + ƐD for exports 1?

Question

Which country is most likely to have a ƐD for imports + ƐD for exports > 1?

BlackTom AI · Accepted Answer

Income elasticity of demand (ƐD) measures how much quantity demanded responds to a change in income: ƐD > 1 means a good is a luxury (demand rises proportionally more than income), 0 < ƐD < 1 means a necessity (demand rises less than income). When the question asks whether ƐD(imports) + ƐD(exports) > 1, we sum the income elasticities of import demand and export demand. If that sum exceeds 1, aggregate trade volumes are income‑sensitive. 1) Relevant concepts - Income elasticity definitions (luxury vs necessity). - Elasticities are additive for the comparison (no complex algebra needed; we compare the numerical sum to 1). - Typical signs: both import and export income elasticities are positive for normal goods. 2) Step‑by‑step reasoning for option A (imports = luxury finished products; exports = basic necessities) - Imports: luxury finished goods → ƐD(imports) > 1 (example: 1.5). - Exports: basic necessities → ƐD(exports) < 1 (example: 0.3). - Sum: 1.5 + 0.3 = 1.8 > 1. So scenario A produces a sum greater than 1 because the high import elasticity dominates. 3) Step‑by‑step reasoning for option B (imports = finished products similar to those from other countries; exports = basic necessities) - Imports: finished products similar to world varieties are often normal goods and consumers increase purchases as income rises; they can have moderately high ƐD (example: 0.8–1.0; choose 0.8). - Exports: basic necessities remain low elasticity (example: 0.4). - Sum: 0.8 + 0.4 = 1.2 > 1. Even if the import elasticity is slightly below 1, combined with export elasticity the sum can exceed 1. 4) Why the correct answer is correct Both described country structures plausibly produce a combined income elasticity above 1: in (A) the import side is strongly income‑elastic; in (B) even moderate import elasticity plus export elasticity can push the sum past 1. Therefore both scenarios satisfy ƐD(imports) + ƐD(exports) > 1. 5) Why other options are incorrect - Choosing only A or only B is too restrictive because both independently can lead to the required inequality depending on realistic elasticity values. - “Neither of these” is wrong because at least one (and in fact both) scenarios can produce a sum > 1. Conclusion: both of these. This matches the provided correct answer: "both of these."

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