Working Papers
2008
May 1, 2008
Tanzania’s Equilibrium Real Exchange Rate
Description: Tanzania's real effective exchange rate (REER) has depreciated sharply since end-2000, reversing the appreciation that took place in the second half of the 1990s. Single-country and panel data estimates, and the external sustainability approach, suggest that Tanzania's REER is currently modestly undervalued relative to its estimated equilibrium level. Looking forward, a modest trend appreciation of the equilibrium REER is expected, consistent with continued high GDP growth and an expected recovery in terms of trade. In addition, capital inflows to Tanzania could be significantly higher than currently expected, to take advantage of Tanzania's natural resources and strong policy framework. If so, these inflows would contribute to an additional appreciation by as much as 20 percent of the equilibrium REER.
May 1, 2008
Fiscal Positions in Latin America: Have They Really Improved?
Description: Fiscal performance in Latin America looks much improved this decade compared to the 1980s or 1990s. Is this a "structural" improvement or likely to be transitory? This paper answers this question by estimating the relationship between non-commodity revenue and the economic cycle, and evaluating commodity revenues using alternative medium term commodity price projections. The main result is that structural revenues have indeed improved as a share of GDP, and structural primary balances are currently in surplus in many Latin American countries. However, the magnitude of these improvements is uncertain, in part due to uncertainty about the commodity price outlook.
May 1, 2008
Central Bank Involvement in Banking Crises in Latin America
Description: This paper reviews the nature of central bank involvement in 26 episodes of financial disturbance and crises in Latin America from the mid-1990s onwards. It finds that, except in a handful of cases, large amounts of central bank money were used to cope with large and small crises alike. Pouring central bank money into the financial system generally derailed monetary policy, fueled further macroeconomic unrest, and contributed to simultaneous currency crises, thereby aggravating financial instability. In contrast, when central bank money issuance was restricted and bank resolution was timely executed, financial disturbances were handled with less economic cost. However, this strategy worked provided appropriate institutional arrangements were in place, which highlights the importance of building a suitable framework for preventing and managing banking crises.
May 1, 2008
Trade Sensitivity to Exchange Rates in the Context of Intra-Industry Trade
Description: This paper theoretically and empirically investigates export sensitivity to exchange rates in the context of intra-industry trade (IIT). It is assumed that more IIT implies a smaller elasticity of substitution among differentiated products and vice versa. The model presented suggests the gap in production costs between two countries has an influence on IIT as well. Industry-level pane regressions of thirty-eight trading pairs provide strong empirical support for the idea that the exchange rate sensitivity of exports declines in concert with the extent of ITT. An obvious policy implication is that the effectiveness of exchange rates in addressing trade imbalances will diminish as the extent of IIT increases.
May 1, 2008
Crude Oil Prices: Trends and Forecast
Description: Following record low interest rates and fast depreciating U.S. dollar, crude oil prices became under rising pressure and seemed boundless. Oil price process parameters changed drastically in 2003M5-2007M10 toward consistently rising prices. Short-term forecasting would imply persistence of observed trends, as market fundamentals and underlying monetary policies were supportive of these trends. Market expectations derived from option prices anticipated further surge in oil prices and allowed significant probability for right tail events. Given explosive trends in other commodities prices, depreciating currencies, and weakening financial conditions, recent trends in oil prices might not persist further without triggering world economic recession, regressive oil supply, as oil producers became wary about inflation. Restoring stable oil markets, through restraining monetary policy, is essential for durable growth and price stability.
May 1, 2008
Why Do Countries Peg the Way They Peg? The Determinants of Anchor Currency Choice
Description: What determines the currency to which countries peg or "anchor" their exchange rate? Data for over 100 countries between 1980 and 1998 reveal that trade network externalities are a key determinant. This implies that anchor currency choice may well be suboptimal in that certain currencies, e.g., the U.S. dollar, could be oversubscribed. It also implies that changes in anchor choices by a small number of countries can have large and rapid effects on the international monetary system. Other factors found to be related to anchor choice include the symmetry of output shocks and the currency denomination of liabilities.
May 1, 2008
Chile: Trade Performance, Trade Liberalization, and Competitiveness
Description: This paper analyses the evolution of Chile's trade between 1990 and 2007, studying in particular the impact of trade liberalization in addition to traditional price and demand determinants. The results show that export and import flows are mainly responsive to external and domestic demand, and less so to relative prices, although there is a small impact on imports. In addition, the analysis suggests that trade liberalization may have played a role in increasing exports and imports. Estimations of trade elasticities for other countries in Latin America tend to confirm the results found for Chile.
May 1, 2008
Fiscal and Monetary Anchors for Price Stability: Evidence from Sub-Saharan Africa
Description: The paper presents a model of fiscal dominance with borrowing constraints, and provides evidence for a large number of sub-Saharan African countries on the relative importance of fiscal and monetary determinants of inflation. Based on the dynamic response of inflation to different shocks, including nominal public debt, results show that a number of SSA countries were characterized throughout the period 1980-2005 either by chronic fiscally dominant regimes, with weak or no response of primary surpluses to public debt; or by a consistent adoption of a monetary dominant regime. However, a number of countries were also characterized by lack of a clear monetary and fiscal policy regime. The study also finds that changes in nominal public debt affect price variability via aggregate demand effects, suggesting that fiscal outcomes could be a direct source of inflation variability, as predicted by the fiscal theory of the price level.
May 1, 2008
Central Bank Independence and Transparency: Evolution and Effectiveness
Description: This paper examines the current level of central bank independence (CBI) and transparency in a broad sample of countries using newly constructed measures, and looks at the evolution in both measures from an earlier time period. Increases in CBI have tended to occur in more democratic countries and in countries with high levels of past inflation. More independent central banks in turn tend to be more transparent, while transparency is also positively correlated with measures of national institutional quality. Exploiting the time dimension of our data to eliminate country fixed effects and using instrumental variable estimation to overcome endogeneity concerns, we present evidence that greater CBI is associated with lower inflation. We also find that enhanced transparency practices are associated with the private sector making greater use of information provided by the central bank.
May 1, 2008
Calculating Sustainable Non-mineral Balances as Benchmarks for Fiscal Policy: The Case of Botswana
Description: Assuming a social welfare function that smoothes expenditure, this paper calculates a sustainability benchmark for the non-mineral balance in Botswana that is based on a notion of a "permanent income" from non-renewable resources. It is derived by constructing a hypothetical annuity from revenues from these resources, which is held constant in terms of GDP. Botswana is an interesting case because current projections suggest that diamond resources could be largely exhausted within a generation.