"accelerator effect" meaning in English

{
  "forms": [
    {
      "form": "accelerator effects",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "2": "+"
      },
      "expansion": "accelerator effect (usually uncountable, plural accelerator effects)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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          "kind": "other",
          "name": "English entries with incorrect language header",
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Economics",
          "orig": "en:Economics",
          "parents": [
            "Social sciences",
            "Sciences",
            "Society",
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            "Fundamental"
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          "source": "w"
        }
      ],
      "glosses": [
        "The positive effect on private fixed investment of the growth of the market economy, commonly measured by a change in gross domestic product."
      ],
      "id": "en-accelerator_effect-en-noun-zg0NepPM",
      "links": [
        [
          "economics",
          "economics"
        ],
        [
          "investment",
          "investment"
        ],
        [
          "market economy",
          "market economy"
        ],
        [
          "gross domestic product",
          "gross domestic product"
        ]
      ],
      "raw_glosses": [
        "(economics) The positive effect on private fixed investment of the growth of the market economy, commonly measured by a change in gross domestic product."
      ],
      "tags": [
        "uncountable",
        "usually"
      ],
      "topics": [
        "economics",
        "sciences"
      ]
    }
  ],
  "word": "accelerator effect"
}

{
  "forms": [
    {
      "form": "accelerator effects",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "2": "+"
      },
      "expansion": "accelerator effect (usually uncountable, plural accelerator effects)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        "en:Economics"
      ],
      "glosses": [
        "The positive effect on private fixed investment of the growth of the market economy, commonly measured by a change in gross domestic product."
      ],
      "links": [
        [
          "economics",
          "economics"
        ],
        [
          "investment",
          "investment"
        ],
        [
          "market economy",
          "market economy"
        ],
        [
          "gross domestic product",
          "gross domestic product"
        ]
      ],
      "raw_glosses": [
        "(economics) The positive effect on private fixed investment of the growth of the market economy, commonly measured by a change in gross domestic product."
      ],
      "tags": [
        "uncountable",
        "usually"
      ],
      "topics": [
        "economics",
        "sciences"
      ]
    }
  ],
  "word": "accelerator effect"
}