Working Papers
2011
August 1, 2011
Public Debt in Advanced Economies and its Spillover Effectson Long-Term Yields
Description: Several models establish a positive association between public debt ratios and long-term real yields, but the empirical evidence is not always conclusive. We reconsider this issue, focusing in particular on possible spillover effects of large advanced economies' debt levels to other economies' borrowing yields, especially in emerging markets. We extend the existing literature by using real time expectations of fiscal and other macroeconomic variables for a large sample of advanced and emerging economies. We show that an increase in the public debt levels of large advanced economies - especially the United States - spills over to both emerging markets and other advanced economies' long-term real yields and that this effect is significant at the current levels of advanced economies' debt ratios.
August 1, 2011
The Taxation and Regulation of Banks
Description: The financial crisis has prompted a reconsideration of the taxation of financial institutions, with practice outstripping principle: France, Germany, the United Kingdom and several other European countries have now introduced some form of bank tax, and the U.S. administration has revived its own proposal for such a charge. This paper considers the structure, appropriate rate, and revenue yield of corrective taxation of financial institutions addressed to two externalities, consequent on excessive risk-taking, prominent in the crisis: those that arise when such institutions are simply allowed to collapse, and those that arise when, to avoid the harm this would cause, their creditors are bailed out. It also asks whether corrective taxation or a regulatory capital requirement is the better way to address these concerns. The results suggest a potential role for taxing bank borrowing, perhaps as an adjunct to minimum capital requirements, at marginal rates that rise quite sharply at low capital ratios (but are likely lower when the government cannot commit to its bailout policy), reaching levels higher than those of the bank taxes so far adopted or proposed.
August 1, 2011
The Cyclicality of Fiscal Policies in the CEMAC Region
Description: This paper examines fiscal cyclicality in the CEMAC region during 1980-2008. The issue has attracted very little empirical interest but is important if fiscal policies are to play a role in mitigating external shocks that exacerbate economic cycles across the region. We assess whether fiscal policies across these six countries have been procyclical using panel data to elaborate our analysis. Like in other sub-Saharan countries, total public expenditure in the CEMAC is found to be strongly procyclical. This is most pronounced for public investment, which overreacts to output growth with elasticity above 1. We further find that institutional weaknesses and poor governance partly explain this behavior. In contrast, the existence of an IMF-supported program can be a counterbalancing influence in attenuating this bias.
August 1, 2011
Public Debt Targeting An Application to the Caribbean
Description: This paper proposes a fiscal policy framework we call Public Debt Targeting. The framework seeks to smooth primary spending over the business cycle while remaining consistent with public debt sustainability. Under the proposed framework, a government announces a commitment to a public debt band trajectory over the medium term, while sequentially announcing primary expenditures for the next budget cycle, which are determined recursively based on the history of shocks. Public debt targeting differs from a structural balance rule in that it internalizes the effect of the deterioration in creditworthiness from fiscal deficits and public debt accumulation, which tend to affect sovereign spreads, interest rates, exchange rates, and economic activity. The proposed framework is applied to Caribbean economies, which in general show high levels of public debt and procyclical primary expenditure.
August 1, 2011
Burkina Faso: Policies to Protect the Poor From the Impact of Food and Energy Price Increases
Description: This paper assesses the effectiveness of policies taken by the Burkinabè authorities to protect the poor from the adverse impact of a combined food and oil price shock in 2008. Estimates of the impact based on household survey data and a price pass-through model suggest that these policies were not well-targeted, benefiting the wealthier groups of the population rather than the poor. More effective policy measures, such as a conditional cash transfer system, which is already being implemented on a pilot basis in urban areas, are discussed as an alternative policy option.
August 1, 2011
De Jure Versus De Facto Exchange Rate Regimes in Sub-Saharan Africa
Description: There are 22 countries in Sub-Saharan Africa (SSA) with floating exchange rate regimes, de jure. Some target the money supply or the inflation rate; others practice "managed floating." Statistical analysis on monthly data for the past decade reveals that in most cases these exchange rate regimes can be approximated surprisingly well by a soft peg to a basket dominated by the US dollar. The weight on the dollar appears to have fallen somewhat across the continent in the aftermath of the global financial crisis. Replicating the model with weekly data for The Gambia suggests that the focus on the dollar might be even more pronounced at higher data frequencies. While there might be strong arguments in favor of limiting exchange rate volatility in SSA countries, soft-pegging to the dollar does not appear to be the best fit for them, given the currency structure of their external trade and finance. The paper concludes by discussing some policy options for SSA countries with flexible exchange rates, in the context of an illustrative recent country case.
August 1, 2011
Oil Shocks in a Global Perspective: Are they Really That Bad?
Description: Using a comprehensive global dataset, we outline stylized facts characterizing relationships between crude oil prices and macroeconomic developments across the world. Approaching the data from several angles, we find that the impact of higher oil prices on oil-importing economies is generally small: a 25 percent increase in oil prices typically causes GDP to fall by about half of one percent or less. While cross-country differences in impact are found to depend mainly on the relative size of oil imports, we also show that oil price shocks are not always costly for oil-importing countries: although higher oil prices increase the import bill, there are partly offsetting increases in external receipts. We provide a small open economy model illustrating the main transmission channels of oil shocks, and show how the recycling of petrodollars may mitigate the impact.
August 1, 2011
Economic Policies and FDI Inflows to Emerging Market Economies
Description: This paper investigates the determinants of FDI inflows to emerging market economies, concentrating on the effects of economic policies. The empirical analysis also addresses the role of external push factors and of political stability using a domestic conflict events database. The results suggest that lowering corporate tax rates and trade tariffs, adopting fixed or managed exchange rate policies and eliminating FDI related capital controls have played an important role. Domestic conflict events and political instability are found to have significant negative effects on FDI, which highlights the role of incluside policies to promote growth and avoid sudden stops of FDI inflows.
August 1, 2011
Capital Regulation and Tail Risk
Description: The paper studies risk mitigation associated with capital regulation, in a context where banks may choose tail risk asserts. We show that this undermines the traditional result that high capital reduces excess risk-taking driven by limited liability. Moreover, higher capital may have an unintended effect of enabling banks to take more tail risk without the fear of breaching the minimal capital ratio in non-tail risky project realizations. The results are consistent with stylized facts about pre-crisis bank behavior, and suggest implications for the optimal design of capital regulation.
August 1, 2011
The Bright and the Dark Side of Cross-Border Banking Linkages
Description: When a country's banking system becomes more linked to the global banking network, does that system get more or less prone to a banking crisis? Using model simulations and econometric estimates based on a world-wide dataset, we find an M-shaped relationship between financial stability of a country's banking sector and its interconnectedness. In particular, for banking sectors that are not very connected to the global banking network, increases in interconnectedness are associated with a reduced probability of a banking crisis. Once interconnectedness reaches a certain value, further increases in interconnectedness can increase the probability of a banking crisis. Our findings suggest that it may be beneficial for policies to support greater interlinkages for less connected banking systems, but after a certain point the advantages of increased interconnectedness become less clear.