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  "domain": "money-market",
  "title": "Call market structure",
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  "frontmatter": {
    "title": "Call market structure",
    "aliases": [
      "money-market/call-market-structure",
      "call-market-structure",
      "uncollateralized overnight call market",
      "無担保コール市場",
      "money-market/japan-uncollateralized-vs-collateralized-call-market",
      "japan-uncollateralized-vs-collateralized-call-market",
      "有担保コール市場",
      "コール市場 担保"
    ],
    "domain": "money-market",
    "type": null,
    "created": "2026-05-19",
    "last_updated": "2026-07-30",
    "last_tended": "2026-07-30",
    "review_by": "2026-11-15",
    "confidence": "likely",
    "tags": [
      "money-market",
      "call-market",
      "BoJ",
      "overnight-rate",
      "tanshi"
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    "status": "active",
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    "sources": [
      "https://www.boj.or.jp/en/statistics/market/short/mutan/index.htm",
      "https://www.boj.or.jp/en/about/education/oshiete/seisaku/b42.htm",
      "https://www.boj.or.jp/about/education/oshiete/seisaku/b31.htm",
      "https://www.boj.or.jp/research/wps_rev/wps_2000/kwp0003a.htm",
      "https://www.boj.or.jp/en/statistics/outline/exp/exmenu_m.pdf",
      "https://www.boj.or.jp/en/announcements/education/oshiete/seisaku/b32.htm/",
      "https://www.boj.or.jp/en/paym/market/",
      "https://www.boj.or.jp/en/research/brp/ron_2024/data/ron241106a.pdf"
    ]
  },
  "summary": "This entry sits under money-market index. Read it against Japan money market for peer / contrast context and BoJ open market operations for the broader system / regulatory boundary.",
  "headings": [
    "Call market structure",
    "Wiki route",
    "TL;DR",
    "Core Mechanics",
    "How To Read The Rate",
    "Uncollateralized vs collateralized segments",
    "Relationship to other front-end markets",
    "Reading checklist",
    "JapanFG Relevance",
    "Boundary Cases"
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