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経済問題（英語）

If national income accounts fail to make an adequate adjustment for increases in the quality of goods and services over time, a. real GDP will overstate the growth rate of real output b. the GDP deflator will underestimate inflation c. the GDP deflator will overestimate inflation d. real GDP will overstate the growth rate of real output, and the GDP deflator will understate inflation どなたか分かる方、よろしくお願いします!!

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回答No.1

答えは（C）ですね。たとえば、パソコンなどの、技術の向上が急テンポで起きている分野の製品を考えてみればわかるように、価格は変わらないのに質の改善がいちじるしい。このとき、全製品がこのような財からなるとすると、価格は変わらないので、インフレーションはゼロですが、質の向上を考慮に入れるなら、、同じ質のパソコンの価格は下落していることになる。つまり、物価は安定しているように見えるが、実際はデフレーションが起きていることになる。表面上の価格で物価水準を測っていると、品質の向上が著しい経済ではCPIやGDPデフレータはインフレを過大評価（過大推計）することになる。 　　　　http://en.wikipedia.org/wiki/Quality_bias を参照されたい。

  1. カテゴリ
  2. 学問・教育
  3. 人文・社会科学
  4. 経済学・経営学

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