最近學到兩種衡量指數
Paasche index
=Σ(PnxQn)/Σ(P0xQn)
Laspeyres index
=Σ(PnxQ0)/Σ(P0xQ0)
請問該如何解釋為何L氏指數常會高估Inflation
而P氏指數則會低估Inflation呢?
感謝~~
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Paasche index
=Σ(PnxQn)/Σ(P0xQn)
Laspeyres index
=Σ(PnxQ0)/Σ(P0xQ0)
請問該如何解釋為何L氏指數常會高估Inflation
而P氏指數則會低估Inflation呢?
感謝~~
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