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Author:Sapriza, Horacio 

Working Paper
Sovereign Debt Restructurings

Sovereign debt crises involve debt restructurings characterized by a mix of face-value haircuts and maturity extensions. The prevalence of maturity extensions has been hard to reconcile with economic theory. We develop a model of endogenous debt restructuring that captures key facts of sovereign debt and restructuring episodes. While debt dilution pushes for negative maturity extensions, three factors are important in overcoming the effects of dilution and generating maturity extensions upon restructurings: income recovery after default, credit exclusion after restructuring, and regulatory ...
Working Papers , Paper 2018-13

Working Paper
Sovereign Default and the Choice of Maturity

This study develops a novel model of endogenous sovereign debt maturity choice that rationalizes various stylized facts about debt maturity and the yield spread curve: first, sovereign debt duration and maturity generally exceed one year, and co-move positively with the business cycle. Second, sovereign yield spread curves are usually non-linear and upward-sloped, and may become non-monotonic and inverted during a period of high credit market stress, such as a default episode. Finally, output volatility, sudden stops, impatience and risk aversion are key determinants of maturity, both in our ...
Working Papers , Paper 2014-31

Journal Article
Quantitative models of sovereign default and the threat of financial exclusion

Economic Quarterly , Volume 93 , Issue Sum , Pages 251-286

Journal Article
The economics of sovereign defaults

Economic Quarterly , Volume 93 , Issue Spr , Pages 163-187

Working Paper
Quantitative properties of sovereign default models: solution methods matter

We study the sovereign default model that has been used to account for the cyclical behavior of interest rates in emerging market economies. This model is often solved using the discrete state space technique with evenly spaced grid points. We show that this method necessitates a large number of grid points to avoid generating spurious interestrate movements. This makes the discrete state technique significantly more inefficient than using Chebyshev polynomials or cubic spline interpolation to approximate the value functions. We show that the inefficiency of the discrete state space technique ...
Working Paper , Paper 10-04

Working Paper
Computing business cycles in emerging economy models

We show that computing business cycles in emerging economy models using the discrete state space technique may be misleading. We solve the models of sovereign default presented by Aguiar and Gopinath (2006) using interpolation. We find that the simulated behavior of the spread is quite different from the behavior obtained using discrete state space. In fact, some of the results obtained by Aguiar and Gopinath (2006) using discrete state space are reversed when using interpolation. Our analysis thus provides a new set of benchmark results for quantitative models of sovereign default. ; Updated ...
Working Paper , Paper 06-11

Working Paper
Fiscal policy and default risk in emerging markets

Emerging market economies typically exhibit a procyclical fiscal policy: public expenditures rise (fall) in economic expansions (recessions), whereas tax rates rise (fall) in bad (good) times. Additionally, the business cycle of these economies is characterized by countercyclical default risk. In this paper we develop a quantitative dynamic stochastic small open economy model with incomplete markets, endogenous fiscal policy and sovereign default where public expenditures and tax rates are optimally procyclical. The model also accounts for the dynamics of other key macroeconomic variables in ...
Working Paper , Paper 09-01

Working Paper
Heterogeneous borrowers in quantitative models of sovereign default

We extend the model used in recent quantitative studies of sovereign default, allowing policymakers of different types to alternate in power. We show that a default episode may be triggered by a change in the type of policymaker in office, and that such a default is likely to occur only if there is enough political stability and if policymakers encounter poor economic conditions. Under high political stability, political turnover enables the model to generate a weaker correlation between economic conditions and default decisions, a higher and more volatile spread, and lower borrowing levels ...
Working Paper , Paper 07-01

Working Paper
On the cyclicality of the interest rate in emerging economy models: solution methods matter

We study the sovereign default model that has been used to account for the cyclical behavior of interest rates in emerging market economies. This model is often solved using the discrete state space technique with evenly spaced grid points. We show that this method necessitates a large number of grid points to avoid generating spurious interest rate movements. This makes the discrete state technique significantly more inefficient than using Chebyshev polynomials or cubic spline interpolation to approximate the value functions. We show that the inefficiency of the discrete state space ...
Working Paper , Paper 09-13

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) ...
Supervisory Research and Analysis Working Papers , Paper RPA 16-4

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