"catch-up effect" meaning in English

{
  "forms": [
    {
      "form": "catch-up effects",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "catch-up effect (plural catch-up effects)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Economics",
          "orig": "en:Economics",
          "parents": [
            "Social sciences",
            "Sciences",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The hypothesis that poorer economies will tend to have faster rates of economic growth than richer ones."
      ],
      "id": "en-catch-up_effect-en-noun-5vfEVxCB",
      "links": [
        [
          "economics",
          "economics"
        ],
        [
          "hypothesis",
          "hypothesis"
        ],
        [
          "economic growth",
          "economic growth"
        ]
      ],
      "raw_glosses": [
        "(economics) The hypothesis that poorer economies will tend to have faster rates of economic growth than richer ones."
      ],
      "synonyms": [
        {
          "word": "convergence"
        }
      ],
      "topics": [
        "economics",
        "science",
        "sciences"
      ],
      "wikipedia": [
        "catch-up effect"
      ]
    }
  ],
  "word": "catch-up effect"
}

{
  "forms": [
    {
      "form": "catch-up effects",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "catch-up effect (plural catch-up effects)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "en:Economics"
      ],
      "glosses": [
        "The hypothesis that poorer economies will tend to have faster rates of economic growth than richer ones."
      ],
      "links": [
        [
          "economics",
          "economics"
        ],
        [
          "hypothesis",
          "hypothesis"
        ],
        [
          "economic growth",
          "economic growth"
        ]
      ],
      "raw_glosses": [
        "(economics) The hypothesis that poorer economies will tend to have faster rates of economic growth than richer ones."
      ],
      "topics": [
        "economics",
        "science",
        "sciences"
      ],
      "wikipedia": [
        "catch-up effect"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "convergence"
    }
  ],
  "word": "catch-up effect"
}