Working Papers
2010
June 1, 2010
Currency Hedging for International Portfolios
Description: This paper examines the benefits from hedging the currency exposure of international investments in single- and multi-country equity and bond portfolios from the perspectives of German, Japanese, British and American investors. Over the period 1975 to 2009, hedging of currency risk substantially reduced the volatility of foreign investments at a quarterly investment horizon. Contrary to previous studies, the paper finds that at longer investment horizons of up to five years the case for hedging for risk reduction purposes remained strong.In addition to its impact on risk, hedging affected returns in economically meaningful magnitudes in some cases.
June 1, 2010
Vietnam: Bayesian Estimation of Output Gap
Description: The paper constructs a new output gap measure for Vietnam by applying Bayesian methods to a two-equation AS-AD model, while treating the output gap as an unobservable series to be estimated together with other parameters. Model coefficients are easily interpretable, and the output gap series is consistent with a broader analysis of economic developments. Output gaps obtained from the HP detrending are subject to larger revisions than series obtained from a suitably adjusted model, and may be misleading compared to the model-based measure.
June 1, 2010
Resolution of Banking Crises: The Good, the Bad, and the Ugly
Description: This paper presents a new database of systemic banking crises for the period 1970-2009. While there are many commonalities between recent and past crises, both in terms of underlying causes and policy responses, there are some important differences in terms of the scale and scope of interventions. Direct fiscal costs to support the financial sector were smaller this time as a consequence of swift policy action and significant indirect support from expansionary monetary and fiscal policy, the widespread use of guarantees on liabilities, and direct purchases of assets. While these policies have reduced the real impact of the current crisis, they have increased the burden of public debt and the size of government contingent liabilities, raising concerns about fiscal sustainability in some countries.
June 1, 2010
Can You Map Global Financial Stability?
Description: The Global Financial Stability Map was developed as a tool to interpret the risks and conditions that impact financial stability in a graphical manner. It complements other existing tools for assessing financial stability, and seeks to overcome some of the drawbacks of earlier approaches. This paper provides the motivation for the tool, a detailed discussion of its construction, including the choice of risk factors and conditions, a description of the underlying indicators, and a discussion on how the final assessment is determined. When applied to past events of financial instability, the Global Financial Stability Map performs reasonably well in signaling risks to stability, as well as in characterizing the depth of crisis episodes.
June 1, 2010
Treasury Single Account: Concept, Design and Implementation Issues
Description: A treasury single account (TSA) is an essential tool for consolidating and managing governments’ cash resources, thus minimizing borrowing costs. In countries with fragmented government banking arrangements, the establishment of a TSA should receive priority in the public financial management reform agenda. Drawing on the lessons of the Fund’s work in several countries in establishing a TSA, this paper explains its concept, essential features, and potential benefits. It also presents alternative models and approaches for designing a TSA that take into account specific country contexts as well as the preconditions and desirable sequencing for its successful implementation. Finally, the paper includes country examples from different regions in support of the analysis and recommendations.
June 1, 2010
Demand Spillovers and the Collapse of Trade in the Global Recession
Description: This paper uses a global input-output framework to quantify US and EU demand spillovers and the elasticity of world trade to GDP during the global recession of 2008-2009. We find that 20-30 percent of the decline in the US and EU demand was borne by foreign countries, with NAFTA, Emerging Europe, and Asia hit hardest. Allowing demand to change in all countries simultaneously, our framework delivers an elasticity of world trade to GDP of nearly 3. Thus, demand alone can account for 70 percent of the trade collapse. Large changes in demand for durables play an important role in driving these results.
June 1, 2010
Beyond Aid: How Much Should African Countries Pay to Borrow?
Description: Post debt relief, the number of African countries considering accessing international capital markets, often to fund large infrastructure projects, is increasing. Potential risks of capital inflows are well known but the literature offers little help to estimate the cost of borrowing internationally for the first time. This paper proposes a two-step approach to estimate the sovereign credit rating and interest rate cost of a country considering borrowing externally. Estimates can be used to assess the costs and benefits of different financing options. The method can also be used to construct foreign currency as well as domestic local currency yield curves.
June 1, 2010
Current Account Imbalances in the Southern Euro Area
Description: The paper examines the causes, consequences, and potential cures of the large current account deficits in the Southern Euro Area (SEA). These were mostly driven by a decline in private saving rates. But it was the European Monetary Union and the Euro, which enabled these countries to maintain investment rates, and thus run larger current account deficits, by improving their access to the international pool of saving. The paper finds that the deficits in SEA in 2008 were larger than can be explained by fundamentals, though the situation varies substantially across countries. It also finds that although the global financial crisis has started to force some unwinding, the current account deficits are expected to remain high in the medium run, though again with substantial variation across countries. The paper argues these large external deficits pose risks to the economy and therefore matter, even in a currency union, and discusses some policy options to reduce them.
June 1, 2010
Commodity Prices and Inflation in the Middle East, North Africa, and Central Asia
Description: Inflation followed a strikingly uniform pattern in all countries of the Middle East, North Africa, and Central Asia during the period 1996-2009, falling until about 2000 and then rising. International fuel prices do not help explain this pattern. This conclusion is robust even when different cross sections of countries are tested or when different regression variables are included. The pattern of inflation is explained mainly by past inflation, the strength of the US dollar, US inflation, and—depending on the subset of countries analyzed—monetary and exchange rate policies and nonfuel commodity prices.
June 1, 2010
On the Optimal Adherence to Money Targets in a New-Keynesian Framework: An Application to Low-Income Countries
Description: Many low-income countries continue to describe their monetary policy framework in terms of targets on monetary aggregates. This contrasts with most modern discussions of monetary policy, and with most practice. We extend the new-Keynesian model to provide a role for “M” in the conduct of monetary policy, and examine the conditions under which some adherence to money targets is optimal. In the spirit of Poole (1970), this role is based on the incompleteness of information available to the central bank, a pervasive issues in these countries. Ex-ante announcements/forecasts for money growth are consistent with a Taylor rule for the relevant short-term interest rate. Ex-post, the policy maker must choose his relative adherence to interest rate and money growth targets. Drawing on the method in Svensson and Woodford (2004), we show that the optimal adherence to ex-ante targets is equivalent to a signal extraction problem where the central bank uses the money market information to update its estimate of the state of the economy. We estimate the model, using Bayesian methods, for Tanzania, Uganda (both de jure money targeters), and Ghana (a de jure inflation targeter), and compare the de facto adherence to targets with the optimal use of money market information in each country.