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Author:Hamann, Franz 

Working Paper
Resource Curse or Blessing? Sovereign Risk in Resource-Rich Emerging Economies

In this paper we document the stylized facts about the relationship between international oil price swings, sovereign risk and macroeconomic performance of oil-exporting economies. We show that even though being a bigger oil producer decreases sovereign risk?because it increases a country?s ability to repay?having more oil reserves increases sovereign risk by making autarky more attractive. We develop a small open economy model of sovereign risk with incomplete international financial markets, in which optimal oil extraction and sovereign default interact. We use the model to understand the ...
Working Papers , Paper 2018-32

Journal Article
On the Aggregate Implications of Removing Barriers to Formality

This article examines the aggregate implications of several policies aimed at removing barriers to formality. To this end, we build a dynamic equilibrium model in which heterogeneous agents choose to work for a wage or operate a technology in the formal or informal sector, based on the costs and benefits associated with these occupational choices.
Review , Volume 102 , Issue 2 , Pages 203-220

Journal Article
Monetary Policy in an Oil-Exporting Economy

The sudden collapse of oil prices poses a challenge to inflation-targeting central banks in oil-exporting economies. In this article, the authors illustrate this challenge and conduct a quantitative assessment of the impact of changes in oil prices in a small open economy in which oil represents an important fraction of its exports. They build a monetary, three-sector, dynamic stochastic general equilibrium model and estimate it for the Colombian economy. They model the oil sector as an optimal resource extracting problem and show that in oil-exporting economies the macroeconomic effects vary ...
Review , Volume 98 , Issue 3 , Pages 239-61

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