"Ellsberg paradox" meaning in English

{
  "etymology_text": "Popularized by Daniel Ellsberg in his 1961 paper “Risk, Ambiguity, and the Savage Axioms”, although a version of it was noted considerably earlier by John Maynard Keynes.",
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  "lang_code": "en",
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      "glosses": [
        "A paradox of choice in which people's decisions produce inconsistencies with subjective expected utility theory."
      ],
      "id": "en-Ellsberg_paradox-en-name-wZPYGlP5",
      "related": [
        {
          "word": "ambiguity aversion"
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      "synonyms": [
        {
          "word": "Ellsberg's paradox"
        }
      ]
    }
  ],
  "word": "Ellsberg paradox"
}

{
  "etymology_text": "Popularized by Daniel Ellsberg in his 1961 paper “Risk, Ambiguity, and the Savage Axioms”, although a version of it was noted considerably earlier by John Maynard Keynes.",
  "forms": [
    {
      "form": "the Ellsberg paradox",
      "tags": [
        "canonical"
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    }
  ],
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  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "related": [
    {
      "word": "ambiguity aversion"
    }
  ],
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      "glosses": [
        "A paradox of choice in which people's decisions produce inconsistencies with subjective expected utility theory."
      ]
    }
  ],
  "synonyms": [
    {
      "word": "Ellsberg's paradox"
    }
  ],
  "word": "Ellsberg paradox"
}