{
  "annotation_id": "746d2ded-cb41-43c9-87a1-b5c532489eba",
  "date_created": "2026-03-02T18:01:06.742000Z",
  "date_modified": "2026-03-02T18:01:06.742000Z",
  "file_hash": "548d856fd3d4083a1f4ea0513b72a7c872cbbdb826e7d1a7f1351172d70aa43b",
  "private": false,
  "record": {
    "abstract": "The waiting time needed for a stock market index to undergo a given\npercentage change in its value is found to have an up-down asymmetry, which,\nsurprisingly, is not observed for the individual stocks composing that index.\nTo explain this, we introduce a market model consisting of randomly fluctuating\nstocks that occasionally synchronize their short term draw-downs. These\nsynchronous events are parameterized by a ``fear factor\u0027\u0027, that reflects the\noccurrence of dramatic external events which affect the financial market.",
    "arxiv_id": "physics/0604137",
    "authors": [
      "Raul Donangelo",
      "Mogens H. Jensen",
      "Ingve Simonsen",
      "Kim Sneppen"
    ],
    "categories": [
      "physics.soc-ph",
      "q-fin.ST"
    ],
    "doi": "10.1088/1742-5468/2006/11/L11001",
    "title": "Synchronization Model for Stock Market Asymmetry",
    "url": "https://arxiv.org/abs/physics/0604137"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "8d6cee1f-a073-4183-9a22-d2f6a07b630e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}