
The technical anatomy of restructurings, written partly by a later central bank governor.
Sturzenegger and Zettelmeyer, both economists with policy and academic backgrounds, wrote a technical account of sovereign debt restructurings between 1998 and 2005.
The cases are Russia in 1998 and 1999, Ukraine, Pakistan, Ecuador, Argentina and Uruguay. For each the authors reconstruct what happened in detail: the debt stock and its composition, the negotiation process, the terms offered and accepted, the legal instruments used, and the participation rates.
The technical contribution is the measurement of haircuts. Comparing what creditors gave up against what they received requires valuing the old and new instruments consistently, and the authors developed a methodology using the yield curve implied by the new instruments at the time of exchange to discount both. This produces figures substantially different from the face value reductions that are usually reported, and it makes restructurings comparable across cases. Their haircut estimates range widely: Uruguay's 2003 exchange imposed a small loss while Argentina's 2005 exchange imposed one of the largest ever recorded.
The analytical findings concern process. Restructurings conducted pre-emptively, before default, imposed smaller losses and were completed faster than those conducted after default. Cases where the debtor engaged with creditors produced faster resolutions than unilateral offers. Domestic debt restructuring is more damaging than external because it hits the domestic banking system. Collective action clauses and exit consents changed what was achievable in specific cases.
The book was written before the eurozone restructurings, before the Argentine holdout litigation reached its conclusion, and before the pari passu rulings changed what holdouts could achieve. The measurement methodology has become standard in the field.
Sovereign debt investors, advisers and policymakers who need the technical record of how these restructurings were actually executed and measured.
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