{
  "title": "Macroeconomic Effects of Japan’s Demographics: Can Structural Reforms Reverse Them?",
  "publication": "IMF Working Papers, November 28, 2018",
  "sourceUrl": "https://www.imf.org/en/publications/wp/issues/2018/11/28/macroeconomic-effects-of-japans-demographics-can-structural-reforms-reverse-them-46356",
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  "summary": "Yes, partly. This paper studies the potential role of structural reforms in improving Japan’s outlook using the IMF’s Global Integrated Monetary and Fiscal Model (GIMF) with newly-added demographic features.",
  "sections": [
    {
      "heading": "Summary",
      "content": "- Yes, partly. This paper studies the potential role of structural reforms in improving Japan’s outlook using the IMF’s Global Integrated Monetary and Fiscal Model (GIMF) with newly-added demographic features.\n- Implementation of a not-fully-believed path of structural reforms can significantly offset the adverse effect of Japan’s demographic headwinds — a declining and ageing population — on real GDP (by about 15 percent in the next 40 years), but would not boost inflation or contribute substantially to stabilizing public debt.\n- Implementation of a fully-credible structural reform program can contribute significantly to stabilizing public debt because of the resulting increase in inflation towards the Bank of Japan’s target, while achieving the same positive long-run effects on real GDP.\n- If no reforms are implemented, severe demographic headwinds are expected to reduce Japan’s real GDP by over 25 percent in the next 40 years."
    },
    {
      "heading": "Key findings",
      "content": "- Real GDP effects:\n  - Not-fully-believed structural reforms: offset adverse demographic effect on real GDP by about 15 percent in the next 40 years.\n  - No reforms: real GDP reduced by over 25 percent in the next 40 years.\n- Inflation and public debt:\n  - Not-fully-believed reforms: would not boost inflation or contribute substantially to stabilizing public debt.\n  - Fully-credible reforms: can contribute significantly to stabilizing public debt via increased inflation towards the Bank of Japan’s target.\n- Model usage:\n  - Analysis conducted with the IMF’s Global Integrated Monetary and Fiscal Model (GIMF) with newly-added demographic features."
    },
    {
      "heading": "Scenarios and projections",
      "content": "- Scenario A — Not-fully-believed structural reforms:\n  - Outcome: Real GDP loss from demographics largely offset (by about 15 percent over 40 years).\n  - Inflation: No material boost.\n  - Public debt: Little contribution to stabilization.\n- Scenario B — Fully-credible structural reforms:\n  - Outcome: Same positive long-run effects on real GDP as Scenario A.\n  - Inflation: Increase towards the Bank of Japan’s target.\n  - Public debt: Significant contribution to stabilization.\n- Scenario C — No reforms:\n  - Outcome: Severe demographic headwinds reduce real GDP by over 25 percent in the next 40 years."
    },
    {
      "heading": "Policy implications and recommendations",
      "content": "- Structural reforms can materially ameliorate long-run GDP losses from a declining and ageing population, but credibility matters:\n  - Not-fully-believed reforms help GDP but are insufficient to raise inflation or stabilize public debt materially.\n  - Fully-credible reforms are needed to trigger inflation dynamics that assist public debt stabilization.\n- Combining structural reforms with credible monetary policy aiming at the Bank of Japan’s inflation target can enhance debt-stabilizing effects.\n- Policy design should account for demographic trends (declining and ageing population) as a core driver of long-term macro outcomes.\n\nSource: IMF Working Paper by Mariana Colacelli and Emilio Fernández Corugedo (November 28, 2018).\n\n---\n\n Content in this bundle\n\n- wp18248\n  - wp18248 (Markdown version){rel=\"alternate\" type=\"text/markdown\"}\n  - wp18248 (PDF){rel=\"external\" type=\"application/pdf\"}\n\n---\n\nSource: https://www.imf.org/en/publications/wp/issues/2018/11/28/macroeconomic-effects-of-japans-demographics-can-structural-reforms-reverse-them-46356"
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    "Authors: Mariana Colacelli, Emilio Fernández Corugedo",
    "Published: November 28, 2018",
    "Series: IMF Working Papers",
    "DOI: https://doi.org/10.5089/9781484384732.001",
    "Yes, partly. This paper studies the potential role of structural reforms in improving Japan’s outlook using the IMF’s Global Integrated Monetary and Fiscal Model (GIMF) with newly-added demographic features.",
    "Implementation of a not-fully-believed path of structural reforms can significantly offset the adverse effect of Japan’s demographic headwinds — a declining and ageing population — on real GDP (by about 15 percent in the next 40 years), but would not boost inflation or contribute substantially to stabilizing public debt.",
    "Implementation of a fully-credible structural reform program can contribute significantly to stabilizing public debt because of the resulting increase in inflation towards the Bank of Japan’s target, while achieving the same positive long-run effects on real GDP.",
    "If no reforms are implemented, severe demographic headwinds are expected to reduce Japan’s real GDP by over 25 percent in the next 40 years.",
    "Real GDP effects:",
    "Inflation and public debt:",
    "Model usage:",
    "Scenario A — Not-fully-believed structural reforms:",
    "Scenario B — Fully-credible structural reforms:",
    "Scenario C — No reforms:",
    "Structural reforms can materially ameliorate long-run GDP losses from a declining and ageing population, but credibility matters:",
    "Combining structural reforms with credible monetary policy aiming at the Bank of Japan’s inflation target can enhance debt-stabilizing effects.",
    "Policy design should account for demographic trends (declining and ageing population) as a core driver of long-term macro outcomes.",
    "**wp18248**"
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