Volume index in Marshall is _______________?
Correct answer: D. ∑qn(Po + Pn)/ ∑qo (Po + Pn) x100
- A. ∑pn(Po + Pn)/ ∑pn (Po + Pn)
- B. ∑qn(qo + qn)/∑qn(po + pn) x100
- C. ∑pn(qo + qn)/∑pn
- D. ∑qn(Po + Pn)/ ∑qo (Po + Pn) x100
Explanation
The Marshall-Edgeworth volume index uses the average of base- and current-period prices as weights: Σqₙ(p₀+pₙ) divided by Σq₀(p₀+pₙ), multiplied by 100. This corresponds to option d.
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