vocabulary:
  name: Reserve Requirements Vocabulary
  description: Domain vocabulary for Federal Reserve reserve requirements policy and FRED economic data API.
  version: "1.0"
  created: "2026-05-02"
  terms:
    - term: ReserveRequirements
      definition: >-
        The minimum amount of funds that a depository institution must hold in
        reserve against specific deposit liabilities. As of March 26, 2020, the
        Federal Reserve reduced all reserve requirement ratios to zero percent.
      related: ["RegulationD", "depositoryInstitution"]

    - term: RegulationD
      definition: >-
        Federal Reserve Regulation D (12 CFR Part 204) governing reserve
        requirements for depository institutions. Defines transaction accounts,
        nonpersonal time deposits, and Eurocurrency liabilities subject to
        reserve requirements.
      related: ["reserveRequirements", "Federal Reserve"]

    - term: ReserveRequirementRatio
      definition: >-
        The percentage of deposits a bank must hold in reserve. Currently set
        at 0% for all liability types as of March 2020.
      values:
        - "0% - Net transaction accounts (current)"
        - "0% - Nonpersonal time deposits (current)"
        - "0% - Eurocurrency liabilities (current)"
      related: ["reserveRequirements"]

    - term: ReserveExemptionAmount
      definition: >-
        The amount of net transaction accounts exempt from reserve requirements
        (annually indexed). For 2026: $39.2 million.
      related: ["reserveRequirements", "RegulationD"]

    - term: LowReserveTranche
      definition: >-
        The amount of net transaction accounts subject to the low reserve
        requirement ratio (annually indexed). For 2026: $674.1 million.
      related: ["reserveRequirements", "RegulationD"]

    - term: DepositoryInstitution
      definition: >-
        A financial institution (bank, credit union, savings institution) that
        accepts deposits and is subject to Federal Reserve reserve requirements.
      related: ["reserveRequirements"]

    - term: MonetaryBase
      definition: >-
        The total amount of currency in circulation plus commercial bank reserves
        held at the central bank. Tracked by the FRED series BOGMBASE.
      related: ["reserveBalances", "FRED"]

    - term: ReserveBalance
      definition: >-
        Funds held by depository institutions at Federal Reserve Banks. Tracked
        by the FRED series RESBALNS (Reserve Balances with Federal Reserve Banks,
        Not Seasonally Adjusted).
      related: ["monetaryBase", "FRED"]

    - term: FRED
      definition: >-
        Federal Reserve Economic Data - the St. Louis Federal Reserve's database
        of economic time series data, accessible via API at api.stlouisfed.org/fred.
      related: ["API", "economicData"]

    - term: TimeSeries
      definition: >-
        A sequence of data observations for an economic variable recorded at
        uniform time intervals. FRED hosts over 800,000 economic time series.
      properties:
        - series_id
        - title
        - frequency
        - units
        - seasonal_adjustment
        - observation_start
        - observation_end
      related: ["FRED", "observation"]

    - term: Observation
      definition: >-
        A single data point in a FRED time series, consisting of a date and
        value. Missing values are represented by a period (.).
      properties:
        - date
        - value
        - realtime_start
        - realtime_end
      related: ["timeSeries", "FRED"]

    - term: H3Release
      definition: >-
        The Federal Reserve's "Aggregate Reserves of Depository Institutions
        and the Monetary Base" statistical release. Discontinued September 2020;
        data folded into the H.6 release.
      related: ["H6Release", "monetaryBase"]

    - term: H6Release
      definition: >-
        The Federal Reserve's "Money Stock Measures" statistical release,
        which absorbed H.3 data after September 2020. Tracks M1, M2, and
        reserve balance components.
      related: ["H3Release", "monetaryBase"]

    - term: SeasonalAdjustment
      definition: >-
        A statistical technique that removes recurring seasonal patterns from
        data to reveal underlying trends.
      values:
        - "Seasonally Adjusted (SA)"
        - "Not Seasonally Adjusted (NSA)"
      related: ["timeSeries"]

    - term: RealtimePeriod
      definition: >-
        The date range indicating when a particular data value was the most
        recently available vintage. Used by FRED to track data revisions.
      related: ["observation", "FRED"]