"mathematical economics" meaning in English

{
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      "expansion": "mathematical economics (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Economics",
          "orig": "en:Economics",
          "parents": [
            "Social sciences",
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        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Mathematics",
          "orig": "en:Mathematics",
          "parents": [
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A sub-field of economics which aims at expressing economic theories with mathematical formulae."
      ],
      "id": "en-mathematical_economics-en-noun-QrAh8oAa",
      "links": [
        [
          "economics",
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        [
          "mathematics",
          "mathematics"
        ],
        [
          "formulae",
          "formula"
        ]
      ],
      "raw_glosses": [
        "(economics, mathematics) A sub-field of economics which aims at expressing economic theories with mathematical formulae."
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "economics",
        "mathematics",
        "science",
        "sciences"
      ],
      "translations": [
        {
          "code": "zh",
          "lang": "Chinese",
          "sense": "sub-field of economics",
          "word": "数理经济学"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "sub-field of economics",
          "word": "talousmatematiikka"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "sub-field of economics",
          "tags": [
            "neuter"
          ],
          "word": "Wirtschaftsmathematik"
        },
        {
          "code": "el",
          "lang": "Greek",
          "roman": "Mathimatikí Oikonomikí",
          "sense": "sub-field of economics",
          "tags": [
            "neuter"
          ],
          "word": "Μαθηματική Οικονομική"
        },
        {
          "alt": "すうりけいざいがく",
          "code": "ja",
          "lang": "Japanese",
          "roman": "sūrikeizaigaku",
          "sense": "sub-field of economics",
          "word": "数理経済学"
        },
        {
          "code": "sv",
          "lang": "Swedish",
          "sense": "sub-field of economics",
          "word": "matematisk ekonomi"
        }
      ],
      "wikipedia": [
        "mathematical economics"
      ]
    }
  ],
  "word": "mathematical economics"
}

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      "expansion": "mathematical economics (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
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        "English lemmas",
        "English multiword terms",
        "English nouns",
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        "en:Mathematics"
      ],
      "glosses": [
        "A sub-field of economics which aims at expressing economic theories with mathematical formulae."
      ],
      "links": [
        [
          "economics",
          "economics"
        ],
        [
          "mathematics",
          "mathematics"
        ],
        [
          "formulae",
          "formula"
        ]
      ],
      "raw_glosses": [
        "(economics, mathematics) A sub-field of economics which aims at expressing economic theories with mathematical formulae."
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "economics",
        "mathematics",
        "science",
        "sciences"
      ],
      "wikipedia": [
        "mathematical economics"
      ]
    }
  ],
  "translations": [
    {
      "code": "zh",
      "lang": "Chinese",
      "sense": "sub-field of economics",
      "word": "数理经济学"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "sub-field of economics",
      "word": "talousmatematiikka"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "sub-field of economics",
      "tags": [
        "neuter"
      ],
      "word": "Wirtschaftsmathematik"
    },
    {
      "code": "el",
      "lang": "Greek",
      "roman": "Mathimatikí Oikonomikí",
      "sense": "sub-field of economics",
      "tags": [
        "neuter"
      ],
      "word": "Μαθηματική Οικονομική"
    },
    {
      "alt": "すうりけいざいがく",
      "code": "ja",
      "lang": "Japanese",
      "roman": "sūrikeizaigaku",
      "sense": "sub-field of economics",
      "word": "数理経済学"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "sub-field of economics",
      "word": "matematisk ekonomi"
    }
  ],
  "word": "mathematical economics"
}