The Public Debt Management Office (PDMO)
To ensure professional, insulated debt operations, many governments establish a specialized Public Debt Management Office (PDMO) within the National Treasury. The PDMO is structurally separated into three functional units to mirror private investment bank risk controls:
  • Front Office: Negotiates loan contracts, manages the issuance of Treasury bills and bonds, and interfaces directly with financial markets and creditors.
  • Middle Office: Conducts independent risk analysis, designs the Medium-Term Debt Management Strategy (MTDS), tracks sustainability indicators, and monitors contingent liabilities.
  • Back Office: Manages debt records, processes principal and interest payments, and ensures financial transactions are accurately recorded in the central accounting system.

  [ Front Office: Market Operations ] ---> Negotiates contracts & issues bonds
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                 v
  [ Middle Office: Risk & Strategy ]  ---> Conducts DSA & designs the MTDS
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                 v
  [ Back Office: Settlement & Records ] --> Processes repayments & logs entries

The Role of the Central Bank as Fiscal Agent
The Central Bank operates as the primary fiscal agent for the government. It manages the physical banking infrastructure of the TSA, operates the electronic settlement networks for government payments, and runs the market auctions for domestic debt instruments. This relationship requires clear institutional frameworks to prevent the central bank from directly financing government deficits, which can trigger inflation.
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