Stress testing is becoming a widely used tool to assess potential vulnerabilities in a financial system. This paper is intended to answer some of the basic questions that may arise as part of the process of stress testing. The paper begins with a discussion of stress testing in a financial...

This paper builds a model of a sovereign borrower that has access to credit from private sector creditors and an IFI. Private sector creditors and the IFI offer different debt contracts that are modelled based on the institutional frameworks of these two types of debt. We analyze the decisions...

The paper lays out an analytical framework for understanding crises in emerging markets based on examination of stock variables in the aggregate balance sheet of a country and the balance sheets of its main sectors (assets and liabilities). It focuses on the risks created by maturity, currency,...

We present a model of the optimal level of international reserves for a small open economy that is vulnerable to sudden stops in capital flows. Reserves allow the country to smooth domestic absorption in response to sudden stops, but yield a lower return than the interest rate on the country's...

Empirical analysis does not suggest that reserves are "too high" in the majority of Asian countries, though China may be a special case. Much of the reserve increase in Asia can be explained by an optimal insurance model under which reserves provide a steady source of liquidity to cushion the...

This paper examines how ratings for emerging market economies have been set. Given the high degree of autocorrelation in ratings, we use estimators that yield consistent parameters in the presence of such correlation. The results show that rating changes for emerging market economies have been...

This paper examines the sustainability of fiscal policy under uncertainty in three emerging market countries, Brazil, Mexico, and Turkey. For each country, we estimate a vector autoregression (VAR) that includes fiscal and macroeconomic variables. Retrospectively, a historical decomposition...

The paper discusses the interrelationships between payments system reform and monetary policy implementation in selected countries in Central and Eastern Europe. The reforms in the payments system are viewed as closely interrelated with the development of money and foreign exchange markets and...

The emerging European economies have been converging rapidly towards the more advanced European economies in recent years. However, large external imbalances in parts of the region have raised questions about sustainability and concerns about vulnerabilities. Empirical evidence in this paper...

Emerging markets business cycle models treat default risk as part of an exogenous interest rate on working capital, while sovereign default models treat income fluctuations as an exogenous endowment process with ad-noc default costs. We propose instead a general equilibrium model of both...