{
  "annotation_id": "d094cd36-62c0-486f-9645-1676ad205e0b",
  "date_created": "2026-03-02T18:01:10.728000Z",
  "date_modified": "2026-03-02T18:01:10.728000Z",
  "file_hash": "f954cd32e6820fa3e8af58d8c2eedba56da635646b90bfb70ac49bf445b99aee",
  "private": false,
  "record": {
    "abstract": "We investigate the relative market efficiency in financial market data, using\nthe approximate entropy(ApEn) method for a quantification of randomness in time\nseries. We used the global foreign exchange market indices for 17 countries\nduring two periods from 1984 to 1998 and from 1999 to 2004 in order to study\nthe efficiency of various foreign exchange markets around the market crisis. We\nfound that on average, the ApEn values for European and North American foreign\nexchange markets are larger than those for African and Asian ones except Japan.\nWe also found that the ApEn for Asian markets increase significantly after the\nAsian currency crisis. Our results suggest that the markets with a larger\nliquidity such as European and North American foreign exchange markets have a\nhigher market efficiency than those with a smaller liquidity such as the\nAfrican and Asian ones except Japan.",
    "arxiv_id": "physics/0608016",
    "authors": [
      "Gabjin Oh",
      "Seunghwan Kim",
      "Cheoljun Eom"
    ],
    "categories": [
      "physics.soc-ph",
      "q-fin.ST"
    ],
    "doi": "10.1016/j.physa.2007.02.032",
    "title": "Market Efficiency in Foreign Exchange Markets",
    "url": "https://arxiv.org/abs/physics/0608016"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "dbba336e-b200-4e49-abfe-068d56ce8634",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}