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Working Paper
Avoiding Sovereign Default Contagion: A Normative Analysis
Should debtor countries support each other during sovereign debt crises? We answer this question through the lens of a two-country sovereign-default model that we calibrate to the euro-area periphery. First, we look at cross-country bailouts. We find that whenever agents anticipate their existence, bailouts induce moral hazard an reduce welfare. Second, we look at the borrowing choices of a global central borrower. We find that it borrows less than individual governments and, as such, defaults become less frequent and welfare increases. Finally, we show that central borrower's policies can be ...
Working Paper
A Journey in the History of Sovereign Defaults on Domestic-Law Public Debt
We introduce a novel database on sovereign defaults that involve public debt instruments governed by domestic law. By systematically reviewing a large number of sources, we identify 134 default and restructuring events of domestic debt instruments, in 52 countries from 1980 to 2018. Domestic-law defaults are a global phenomenon. Over time, they have become larger and more frequent than foreign-law defaults. Domestic-law debt restructurings proceed faster than foreign ones, often through extensions of maturities and amendments to the coupon structure. While face value reductions are rare, ...
Working Paper
Natural Disasters, Climate Change, and Sovereign Risk
I investigate how natural disasters can exacerbate fiscal vulnerabilities and trigger sovereign defaults. I extend a standard sovereign default model to include disaster risk and calibrate it to a sample of seven Caribbean countries that are frequently hit by hurricanes. I find that disaster risk reduces government's ability to issue debt and that climate change further restricts government's access to financial markets. Next, I show that "disaster clauses", that provide debt-servicing relief, allow governments to borrow more and preserve government's access to financial markets, amid rising ...
Working Paper
Differential Treatment in the Bond Market: Sovereign Risk and Mutual Fund Portfolios
How does sovereign risk affect investors' behavior? We answer this question using a novel database that combines sovereign default probabilities for 27 developed and emerging markets with monthly data on the portfolios of individual bond mutual funds. We first show that changes in yields do not fully compensate investors for additional sovereign risk, so that bond funds reduce their exposure to a country's assets when its sovereign default risk increases. However, the magnitude of the response varies widely across countries. Fund managers aggressively reduce their exposure to high-debt ...
Working Paper
Domestic Debt and Sovereign Defaults
This paper examines how domestic holdings of government debt affect sovereign default risk and government debt management. I develop a dynamic stochastic general equilibrium model with both external and domestic debt that endogenously generates output contraction upon default. Domestic holdings of government debt weaken investors' balance sheets and induce a contraction of credit and output upon default. I calibrate the model to the Argentinean economy and show that the model reproduces key empirical moments. Introducing domestic debt also yields relevant normative implications. While ...
Working Paper
Natural Disasters, Climate Change, and Sovereign Risk
I investigate how natural disaster can exacerbate fiscal vulnerabilities and trigger sovereign defaults. I extend a standard sovereign default model to include disaster risk and calibrate it to a sample of seven Caribbean countries that are frequently hit by hurricanes. I find that hurricane risk reduces government's ability to issue debt and that climate change may further restrict market access. Next, I show that "disaster clauses", that provide debt-servicing relief, improve government ability to borrow and mitigate the adverse impact of climate change on government's borrowing conditions.
Working Paper
Sovereign Risk Matters: The Effects of Endogenous Default Risk on the Time-Varying Volatility of Interest Rate Spreads
Emerging market interest rate spreads display substantial time-varying volatility. We show that a baseline model with endogenous sovereign default risk can account for such volatility, even in the absence of shocks to the second moments of the exogenous stochastic variables. In particular, the model features a key non-linearity that allows it to replicate the volatility of interest rate spreads and its comovement with other economic variables. Volatility correlates positively with the level of the spreads and the trade balance and negatively with output and consumption.
Working Paper
Selective Sovereign Defaults
Governments issue debt both domestically and abroad. This heterogeneity introduces the possibility for governments to operate selective defaults that discriminate across investors. Using a novel dataset on the legal jurisdiction of sovereign defaults that distinguishes between defaults under domestic law and default under foreign law, we show that selectiveness is the norm and that imports, credit, and output dynamics are different around different types of default. Domestic defaults are associated with contractions of credit and are more likely in countries with smaller credit markets. In ...
Discussion Paper
Natural Disasters, Climate Change, and Sovereign Risk
Unexpected shocks may tip countries with elevated fiscal vulnerabilities into default. The literature has emphasized the role of macroeconomic and financial shocks, such as a decline of commodity prices (Reinhart et al., 2016) or banking crises (Baltenau and Erce, 2018) in shaping sovereign risk.
Discussion Paper
Avoiding Sovereign Default Contagion: A Normative Analysis
Sovereign debt crises happen in waves, spreading from one country to the other. The euro-area debt crisis of 2011-12 is a good example of that. Stress in the sovereign debt market quickly spread from Greece and Ireland to Portugal, Spain, and Italy.