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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.
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Partial Default
In the data sovereign default is always partial and varies in its duration. Debt levels during default episodes initially increase and do not experience reductions upon resolution. This paper presents a theory of sovereign default that replicates these properties, which are absent in standard sovereign default theory. Partial default is a flexible way to raise funds as the sovereign chooses its intensity and duration. Partial default is also costly because it amplifies debt crises as the defaulted debt accumulates and interest rate spreads increase. This theory is capable of rationalizing the ...
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
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
Liquidity Shocks, Dollar Funding Costs, and the Bank Lending Channel during the European Sovereign Crisis
This paper documents a new type of cross-border bank lending channel using a novel dataset on the balance sheets of U.S. branches of foreign banks and their syndicated loans. We show that: (1) The U.S. branches of euro-area banks suffered a liquidity shock in the form of reduced access to large time deposits during the European sovereign debt crisis in 2011. The shock was related to their euro-area affiliation rather than to country- or bank-specific characteristics. (2) The affected branches received additional funding from their parent banks, but not enough to offset the lost deposits. (3) ...
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 ...