fixed income 5: Fixed-Income Markets for Government Issuers

what is a sovereign government

National governments with:

• taxing authority,

• legal sovereignty,

• control over fiscal policy,

• ability to issue currency (in many cases)

What is a developed market (DM) sovereign issuer?

A government with a stable, diversified economy, transparent fiscal policy, and strong access to capital markets.

DM debt characteristics

• often considered “default-risk-free,”

• highly liquid government bond markets.

• issue debt across all maturities,

• low borrowing costs,

• strong investor confidence.

What characterises emerging market (EM) sovereign issuers?

Characteristics

• faster growth,

• less diversified economies,

• commodity dependence,

• weaker institutions,

• more volatile fiscal conditions.

Funding Challenges

• restricted domestic currencies,

• lower investor confidence,

• higher borrowing costs,

• dependence on foreign funding.

What is external debt for an emerging market sovereign?

Issued:

• in foreign currency,

• to foreign investors.

benefits and risks of external debt

Benefits:

• broader investor base,

• access to larger capital pools

Major risk:

• currency mismatch.

If local currency weakens:

• foreign debt becomes harder to repay.

What does the Ricardian equivalence theorem state?

Government debt maturity choice is irrelevant because taxpayers expect future taxes to offset current borrowing.

What are the key assumptions of Ricardian equivalence?

• Rational expectations

• Perfect capital markets

• Consumption smoothing

• Intergenerational altruism

short term debt advantages and disadvantages

Advantages

• lower yields,

• cheaper financing

Risks

• constant refinancing → rollover risk

• vulnerable during crises

benefits of issuing sufficient longer-term sovereign government securities to maintain liquidity across maturities:

1. establishment of a risk free benchmark for all debt of specific maturities

2. use in managing and hedging market interest rate irsk

3. preferred use as collateral in repo and derivative transactions

4. government bond use in monetary policy and foreign exchange rates
   

How do sovereign bond issuances typically differ from corporate bond issuances?

• Sovereign bond: public auctions,

• corporate bonds: opportunistically through underwriters.

competitive vs non competitive bids?

1. Competitive bids

• Specify:

  • price or yield

  • quantity desired

• Risk:

  • if bid is too aggressive (too low price / too high yield), bidder gets nothing

2. Non-competitive bids

• Agree to accept whatever price clears the auction

• Guaranteed allocation

single-price auction vs multiple price auctions

1. Single-price (uniform-price) auction

• All winning bidders pay the same price / yield

• That price = cut-off (clearing) price

2. Multiple-price (discriminatory) auction

• Each bidder pays their own bid price

• Different investors receive same bond at different price

What is the cut-off yield?

The highest yield (lowest price) accepted to fill the auction amount.

What are the steps in a single-price auction?

1. Auction announcement

2. Submission of bids

3. Ranking by yield/price

4. Allocation at cutoff yield

5. Settlement and issuance

Why do governments like auctions?

• Efficient price discovery

• Broad investor participation

• Lower issuance costs

• reduced yield volatility

• Reduced underwriting dependency vs corporates

Where are sovereign bonds primarily traded after issuance?

In over-the-counter (OTC) markets via broker-dealers.

What is an on-the-run sovereign bond?

• most recently issued government securities

• highest liquidity

• tightest bid–ask spreads

• serve as benchmark securities for yield curves and pricing other debt instruments.

What is an off-the-run sovereign bond?

• older issues

• lower liquidity

• wider spreads

sovereign markets vs corporate markets

Sovereign markets

Governments appoint primary dealers who:

• submit bids in auctions,

• support liquidity in secondary markets,

• help central bank operations,

• facilitate foreign investor access.

Corporate markets

Underwriters:

• structure deal,

• distribute bonds,

• stabilize pricing initially,

• provide market-making support.

sovereign bond characteristics

• most liquid fixed-income instruments

• often traded electronically (especially on-the-run issues)

• used as pricing benchmarks

• attract many non-economic investors (central banks, regulators), unlike corporates.

corporate bond characteristics

• fragmented trading

• wider bid–ask spreads

• lower trading frequency

• price discovery often model-based

what does corporate bond liquidity depend on?

Liquidity depends on:

• issuer credit quality

• issuance size

• time since issuance

• market conditions

What determines the funding structure of non-sovereign government issuers?

What are government agencies?

Entities created by governments to perform specific economic or social functions.

• airport authorities,

• housing finance agencies,

• infrastructure agencies.

What are common repayment sources for government agency debt?

• Primary source: Operating cash flows or fees

• Secondary source: Sovereign or local government backing

What are general obligation (GO) bonds?

Unsecured bonds repaid from local tax revenues and used to fund general public goods/services.

• backed by taxing power of local government.

What are revenue bonds?

Bonds issued for specific projects and repaid from project-generated revenues like tolls or fees.

• longer funding usually matches cash flows

GO bond vs revenue bond

Feature	GO Bond	Revenue Bond
Repayment source	Taxes	Project revenues
Security	General government backing	Specific project cash flows
Risk level	Usually lower	Depends on project success
Typical use	Public services	Infrastructure projects

What are supranational organisations?

Organisations created and supported by multiple sovereign governments to pursue shared objectives

• World Bank

• IMF

• Asian Development Bank (ADB)

goals of supranational organisations

• Economic development

• Trade promotion

• Financial support for emerging economies

• Sustainable growth

Funding Characteristics of Supranationals

Strong credit quality because:

• backed by member governments,

• diversified support base,

• implicit/explicit guarantees.

Result:

• can borrow very cheaply,

• excellent market access,

• issue global bonds in many currencies.

key credit differences across issuer types

Issuer Type	Main Repayment Source	Government Support	Credit Quality
Sovereign government	Taxes	Full sovereign authority	Highest
Government agency	Fees/cash flows	Often implicit or explicit	High
GO bond issuer	Local taxes	Local taxing authority	Moderate–high
Revenue bond issuer	Project revenues	Limited	Project dependent
Supranational	Member state support	Strong multinational backing	Very high